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Seachem Laboratories

Seachem Laboratories

Seachem remains as one of the few surviving independent and privately owned pet care companies. Seachem is owned and operated by hobbyists. All of our employees are hobbyists who maintain aquariums at home and at the office.

Seachem itself was started because one such hobbyist found the available solutions to aquarists’ problems wanting. This resulted in Seachem’s very first product: Cupraplex™ (today known as Cupramine™). Thirty years later Seachem is still approaching old problems in a new way. We offer truly innovative solutions that work better than competing products and save money through increased efficiency and concentration.

123 products

Seachem Prime - 500 mL
2 reviews
In Stock

Prime is a complete conditioner for both marine and freshwater use that removes chlorine, chloramine, and detoxifies ammonia and nitrite.It also provides essential ions and stimulates natural slime coat. It will also detoxify any heavy metals found in the tap water at typical concentration levels.Prime also enhances nitrate removal. It should be the first choice conditioner when setting up a new tank, adding, or changing water. No other product is required to make water safe, even in high chloramine situations.Unlike competing products, Prime does not cause a pH drop or over-activate skimmers.A 100 mL bottle treats over 1,000 gallons, much more than competing products.

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In Stock

$24.20
Seachem Reef Glue (20 Gram)
1 review
In Stock

Seachem Reef Glue is a superior cyanoacrylate gel for gluing and mounting coral frags and colonies to reef rock or plugs. It bonds within seconds and has excellent control, hold and durability characteristics. It can even be used underwater.Reef Glue can be used for any aquascaping in freshwater or saltwater aquariums or for any plastics repairs.Reef Glue comes in an aluminum tube for extended stability beyond products contained in plastic bottles - it won't dry up in the tube.With a new formula that is 17x thicker, there's more control while gluing and less mess in application!Directions Dispense a small amount of glue prior to each use. Apply a small amount of Reef Glue to one of the surfaces and press parts together for 20 seconds. Wipe tip free of glue before replacing the cap.WARNINGCyanoacrylate. Danger. Bonds skin and eyes in seconds. Keep out of the reach of children. Eye and skin irritant. If eye contact occurs, rinse with water for 5-10 minutes.

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$11.15
Seachem Flourish - 500ml
In Stock

Seachem Flourish - 500ml Overview Flourish is a comprehensive plant supplement for the natural freshwater aquarium. It contains a rich assortment of important micro elements, trace elements and other nutrients. These include calcium, magnesium, iron and other important elements that have been shown to be beneficial to aquatic plants. For macro element (NPK) fertilization, use Flourish Nitrogen, Flourish Phosphorus or Flourish Potassium as needed. Unlike competing products, Flourish is designed to be used in conjunction with other macro and micro-nutrient supplements. Other manufacturers try to include ALL necessary nutrients, leading to overdoses of micro-nutrients in an attempt to raise macro-nutrient levels. How to Use Use 1 capful (5 mL) for each 250 L (60 gallons*) once or twice a week. For smaller doses, please note that each cap thread is approximately 1 mL. Refrigeration after opening is recommended but not required.

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$15.35
Seachem Ammonia Alert
1 review
In Stock

Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed. The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. It lasts over a year and replacement sensors are available. Marine or freshwater use.In the absence of free ammonia the unit will assume a yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water, chemicals, or test procedures are required. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to go from TOXIC to SAFE on removal of ammonia.

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$10.70
Seachem Purigen - 100 mL
5 reviews
In Stock

Already pre-bagged - ready to use. Great for Nano Aquariums!Purigen is a premium synthetic adsorbent that is unlike any other filtration product.It is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others, even HyperSorb, by over 500%.Purigen removes proteins, nitrites and nitrates, ammonia, and a broad spectrum of organics, yet its impact on trace elements is minimal. It significantly raises redox.It polishes water to unparalleled clarity. Like HyperSorb, Purigen darkens progressively as it exhausts, and is easily renewed by treating with household bleach.A 100 mL bag of Purigen purifies and polishes up to 100 gallons of water for up to six months.Marine or freshwater use.

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$13.70
Seachem Prime - 250 mL
1 review
In Stock

Prime is a complete conditioner for both marine and freshwater use that removes chlorine, chloramine, and detoxifies ammonia and nitrite.It also provides essential ions and stimulates natural slime coat. It will also detoxify any heavy metals found in the tap water at typical concentration levels.Prime also enhances nitrate removal. It should be the first choice conditioner when setting up a new tank, adding, or changing water. No other product is required to make water safe, even in high chloramine situations.Unlike competing products, Prime does not cause a pH drop or over-activate skimmers.A 100 mL bottle treats over 1,000 gallons, much more than competing products.

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In Stock

$12.70
Seachem Stability - 500ml
1 review
In Stock

Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome".Stability is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite and nitrate.Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of over use.Stability is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management.500ml of Stability will treat approximately 230 gallons for new aquariums, and 2000 gallons for established aquariums.

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$22.05
Seachem Flourish Tabs - 40 Pack
In Stock

Flourish Tabs are growth stimulating tablets for plant roots. They contain essential trace elements, amino acids, and vitamins. They are rich in iron, manganese, magnesium, calcium, potassium, inositol, choline B12, biotin, and other factors that have been determined to be beneficial to aquatic plant roots. They contain no phosphate or nitrate that would promote algae proliferation. Each pack of ten tablets treats a 12 x 30 inch plant bed twice.Perfect for the beginner, Flourish Tabs contain all the nutrients found in Flourish in a dry, tabular form. These tabs are inserted into the gravel, providing direct, time-released fertilization to the plants' root zone. Nutrients are slowly made available through enzymatic action of the plants' roots on the tabs.Directions: Insert one Flourish Tab in the gravel for every 10-15 cm (4-6 in.) radius. A standard 10 gallon aquarium requires 6 tabs. Distribute the tablets evenly throughout the gravel bed. Push each tablet midway into the gravel bed. Add new tablets once every one to three months for optimal plant growth. Tabs will not alter pH, but, in very soft or unbuffered water, they have slightly acidic properties similar to peat moss.

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$36.40
Seachem Flourish Excel - 500ml
In Stock

Seachem Flourish Excel - 500ml Flourish Excel is a source bioavailable organic carbon. Overview All plants require a source of carbon. This is typically obtained from CO2, but, may also be derived from simple organic compounds (such as photosynthetic intermediates). The use of either CO2 injection or Flourish Excel does not necessarily negate the use of the other. Because the processes of producing photosynthetic intermediates and building onto them occur simultaneously, one can derive a substantial benefit with the use of Flourish Excel either alone or in conjunction with CO2 . The combination is particularly ideal for situations when continuing to add CO2 could result in dangerously low pH levels. Flourish Excel also has iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3). The reason plants need CO2 is to produce longer chain carbon compounds also known as photosynthetic intermediates. Photosynthetic intermediates includes compounds such as ribulose 1,5-bisphosphate, and 2-carboxy-3-keto-D-arabinitol 1,5 bisphosphate. Although the names are complicated, the structures are quite simple (5 carbon chains). Flourish Excel does not contain these specific compounds per se, but one that is quite similar. By dosing with Flourish Excel you bypass the involvement of CO2 and introduce the already finished, structurally similar compounds. It is in its structural similarity that Flourish Excel is able to be utilized in the carbon chain building process of photosynthesis. Simple chemical or enzymatic steps can easily convert it to any one to any one of the above named compounds (or a variety of others). How to Use Flourish Excel On initial use or after a major (> 40%) water change, use 1 capful (5 mL) for every 40 L (10 gallons*). Thereafter use 1 capful for every 200 L (50 gallons*) daily or every other day. Dosing may be slowly increased in high-growth aquariums. For smaller dosing please note that each cap thread is approximately 1mL.

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In Stock

$15.35
Seachem Stability - 250ml
1 review
In Stock

Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome".Stability is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite and nitrate.Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of over use.Stability is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management.250ml of Stability will treat approximately 115 gallons for new aquariums, and 1000 gallons for established aquariums.

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In Stock

$11.65
Seachem Prime - 100 mL
In Stock

Prime is a complete conditioner for both marine and freshwater use that removes chlorine, chloramine, and detoxifies ammonia and nitrite.It also provides essential ions and stimulates natural slime coat. It will also detoxify any heavy metals found in the tap water at typical concentration levels.Prime also enhances nitrate removal. It should be the first choice conditioner when setting up a new tank, adding, or changing water. No other product is required to make water safe, even in high chloramine situations.Unlike competing products, Prime does not cause a pH drop or over-activate skimmers.A 100 mL bottle treats over 1,000 gallons, much more than competing products.

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In Stock

$6.25
Seachem Equilibrium - 600 Gram
In Stock

Equilibrium is specifically designed to establish the ideal mineral content for the planted aquarium.Equilibrium contains no sodium or chloride (which can be detrimental to a planted aquarium at elevated levels). Equilibrium is ideally suited for use with RO (reverse osmosis) or DI (deionized) water or any mineral deficient water. Equilibrium raises the essential mineral/electrolyte content (General Hardness) of the water to balance with and promote stability of the carbonate hardness. To maintain KH, we recommend Alkaline Buffer. Unlike competing products, Equilibrium contains NO SODIUM CHLORIDE. Both sodium and chloride are not rapidly depleted elements in a planted aquarium, and, in the case of chloride, can do more harm than good. Competitors' products generally contain primarily sodium chloride (because it is inexpensive), which will raise the electrolyte levels for fish, but can be detrimental to plant growth. In addition, sodium is not a contributing cation to GH levels. Equilibrium contains only calcium, magnesium, and potassium salts, which aid in fish metabolism, but are also highly beneficial to plant growth.Directions: To raise mineral content/general hardness (GH) by 1 meq/L (3 dH), add 16 g (1 tablespoon) for every 80 L (20 gallons*) when setting up an aquarium or when making water changes (add to new water). Equilibrium can be added straight, although for optimum solubility we recommend mixing with ~ 1 L (1 qt.) of water (the resulting mixture will have a white opaque appearance). When this mixture is added to the aquarium it will impart a slight haze that should clear within 15-30 minutes. HINTS: Do not use Equilibrium when replacing evaporated water. This dose is based on DI or RO water; for other water, measure hardness (GH) first, then add according to need. Plant preferences vary, but a general guide is about 1-2 meq/L (3-6 dH) or match the existing or target carbonate hardness (KH), which, ideally, is also about 1-2 meq/L (3-6 dKH).

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$17.80
Seachem Zip Bag - Medium Mesh
In Stock

0

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$4.10
Seachem Flourish Potassium - 500ml
In Stock

Flourish Potassium contains 50,000 mg/L of potassium suitable for the natural planted aquarium. Potassium is one of several elements that are vitally important to maintaining a vigorous level of growth in a planted aquarium.Potassium can become depleted in a rapidly growing system or when the source water has a low mineral content. In these cases potassium could become the limiting factor to growth. Use Flourish Potassium to prevent potassium depletion (signs of which include yellowing in older leaves) and maintain the highest level of growth.The most easily obtained sources of potassium are potassium nitrate and potassium phosphate. Both of these sources add to either nitrogen or phosphorus as well as potassium, making it virtually impossible to target a specific NPK ratio. Flourish Potassium is derived from potassium sulfate, allowing the user to adjust potassium levels without affecting nitrogen or phosphorus.Directions: Use 1 capful (5 mL) for every 125 L (30 gallons*). This dose raises potassium by 2 mg/L. Repeat 2-3 times per week or as needed (in response to signs of potassium deficiency in older leaves which includes: chlorosis (yellowing), necrosis (death/browning), and weak stems and roots.Derived from: Potassium Sulfate. Elemental potassium is present at a concentration of 50,000 ppm (e.g. 5%). Archaic fertilizer laws require us to list potassium in terms of equivalence to a material that is not present (K2O) rather than the more scientifically sound method of simple elemental equivalence.

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$15.35
Seachem Flourish Excel - 2 Litre
In Stock

Seachem Flourish Excel - 2 Litre Flourish Excel is a source bioavailable organic carbon. Overview All plants require a source of carbon. This is typically obtained from CO2, but, may also be derived from simple organic compounds (such as photosynthetic intermediates). The use of either CO2 injection or Flourish Excel does not necessarily negate the use of the other. Because the processes of producing photosynthetic intermediates and building onto them occur simultaneously, one can derive a substantial benefit with the use of Flourish Excel either alone or in conjunction with CO2 . The combination is particularly ideal for situations when continuing to add CO2 could result in dangerously low pH levels. Flourish Excel also has iron reducing properties which promote the ferrous state of iron (Fe+2), which is more easily utilized by plants than ferric iron (Fe+3). The reason plants need CO2 is to produce longer chain carbon compounds also known as photosynthetic intermediates. Photosynthetic intermediates includes compounds such as ribulose 1,5-bisphosphate, and 2-carboxy-3-keto-D-arabinitol 1,5 bisphosphate. Although the names are complicated, the structures are quite simple (5 carbon chains). Flourish Excel does not contain these specific compounds per se, but one that is quite similar. By dosing with Flourish Excel you bypass the involvement of CO2 and introduce the already finished, structurally similar compounds. It is in its structural similarity that Flourish Excel is able to be utilized in the carbon chain building process of photosynthesis. Simple chemical or enzymatic steps can easily convert it to any one to any one of the above named compounds (or a variety of others). How to Use Flourish Excel On initial use or after a major (> 40%) water change, use 1 capful (5 mL) for every 40 L (10 gallons*). Thereafter use 1 capful for every 200 L (50 gallons*) daily or every other day. Dosing may be slowly increased in high-growth aquariums. For smaller dosing please note that each cap thread is approximately 1mL.

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In Stock

$52.60
Seachem The Bag Filter Media Bag
3 reviews
In Stock

The Bag is an innovative welded filter bag with a durable non-stitched seam.It has a 180 micron mesh, is resistant to bleach, caustics, and acids, and comes with a convenient resealable locking closure.It is available in a convenient 5" x 10" size.It is ideal for all filtration products and has an exceptionally long life.Unlike stitched seams, welded seams are not subject to degradation from exposure to bleach, caustics, acids, or other harsh environmental exposure likely to take place during regeneration of filter media.

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$13.10
Seachem Zip Bag - Small Mesh
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0

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$4.10
Seachem Purigen - 250 mL
2 reviews
In Stock

Purigen is a premium synthetic adsorbent that is unlike any other filtration product.It is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others, even HyperSorb, by over 500%.Purigen removes proteins, nitrites and nitrates, ammonia, and a broad spectrum of organics, yet its impact on trace elements is minimal. It significantly raises redox.It polishes water to unparalleled clarity. Like HyperSorb, Purigen darkens progressively as it exhausts, and is easily renewed by treating with household bleach.A 100 mL bag of Purigen purifies and polishes up to 100 gallons of water for up to six months.Marine or freshwater use.

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In Stock

$22.90
Seachem Prime - 2 Litre
3 reviews
In Stock

Prime is a complete conditioner for both marine and freshwater use that removes chlorine, chloramine, and detoxifies ammonia and nitrite.It also provides essential ions and stimulates natural slime coat. It will also detoxify any heavy metals found in the tap water at typical concentration levels.Prime also enhances nitrate removal. It should be the first choice conditioner when setting up a new tank, adding, or changing water. No other product is required to make water safe, even in high chloramine situations.Unlike competing products, Prime does not cause a pH drop or over-activate skimmers.A 100 mL bottle treats over 1,000 gallons, much more than competing products.

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In Stock

$75.85
Seachem Flourish Iron - 500ml
In Stock

Flourish Iron is a highly concentrated (10,000 mg/L) ferrous iron (Fe+2) gluconate supplement. It should be used in those cases where the iron requirements exceed that which can be delivered by Flourish at the recommended dose or signs of iron deficiency appear (such as short and slender stems or yellowing between veins.) Contains no phosphate or nitrate.Plants are able to much more easily derive a benefit from Flourish Iron than from EDTA-iron sources because all EDTA iron is in the ferric (Fe+3) state. Since plants require iron in the ferrous (Fe+2) state, additional physiological energy must be expended in order to extract the ferric iron from EDTA-iron and then convert it to the ferrous form.Directions: Use 1 capful (5 mL) for each 200 L (50 gallons*) or as required to maintain about 0.10 mg/L iron. For smaller doses please note that each cap thread is about 1 mL. Use MultiTest: Iron test kit to monitor iron concentrations. Use as needed to combat signs of iron deficiency (usually seen in new growth) which include: chlorosis (yellowing) of tissue between veins and short and slender stems.

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In Stock

$15.35
Seachem Flourish Glue - 8 Gram
In Stock

Flourish Glue is a superior cyanoacrylate gel for attaching moss and plants to rocks, driftwood, and even gravel. It's uniquely useful when planting bunch plants.Simply apply Flourish Glue, plant as usual and the plants stay rooted in the substrate. It bonds within seconds and has excellent control, hold and durability characteristics. It can even be used underwater.Flourish Glue can be used for any aquascaping in freshwater or saltwater aquariums or for any plastics repairs. Flourish Glue comes in an aluminum tube for extended stability beyond products contained in plastic bottles - it won't dry up in the tube.Directions Dispense a small amount of glue prior to each use. Apply a small amount of glue to moss or plant roots and press against desired surface for 20 seconds. For bunch plants, apply glue and plant as usual. Wipe tip free of glue before replacing the cap.Warning Cyanoacrylate. Danger. Bonds skin and eyes in seconds. Keep out of the reach of children. Eye and skin irritant. If eye contact occurs, rinse with water for 5-10 minutes.

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$8.65
Seachem Reef Plus - 500 mL
1 review
In Stock

Reef Plus is a full spectrum supplement of trace components such as iodide, bromide, molybdenum, iron, manganese, cobalt, potassium, inositol, choline; important vitamins such as C and B12; and beneficial amino acids, such as cysteine, proline, glycine, alanine, and lysine.It may be used as a food supplement.It complements Reef Complete and Reef Calcium.It is a concentrated product: each 500 mL treats 8,000 L (2,000 gallons).

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$15.45
Seachem Reef Complete - 500 mL
In Stock

Reef Complete is a concentrated (160,000 mg/L) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH (formulated at pH 8.3).Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health.Reef Complete also includes magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr). This allows one to maintain these two important elements while maintaining calcium.Reef Complete delivers 560x more calcium than is available from an equal volume of kalkwasser solution. Use Reef Complete to maintain adequate calcium and Reef Calcium to promote accelerated growth.500 mL treats 8,000 L (2,000 gallons).

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$14.95
Seachem StressGuard - 500ml
3 reviews
In Stock

StressGuard is the premium slime coat protection product. StressGuard will reduce stress and ammonia toxicity whenever handling or transporting fish. StressGuard binds to exposed protein in wounds to promote healing of injured fish and to reduce the likelihood of primary and secondary infections.StressGuard is compatible with all medications except those that are copper based. StressGuard is not amine based and will not interfere with Purigen or HyperSorb regeneration. StressGuard does not coat resins or clog filtration like competing "slime coat" type products can.What makes StressGuard very successful at healing is the fact that it contains protein active colloids. This protein active colloidal agent actively seeks out any wounds, abrasions, or places where exposed proteins are and attaches to this area to help directly deliver the disinfectant in the product and start the healing process. This protein active colloid, because it binds to the exposed proteins, also acts like a liquid bandage to the abrasion.Some products are marketed to be squirted in the bag when a fish is purchased. Those products are generally acidic, with some brands being a very strong acid. Putting such a product in a small, enclosed container with a fish often does more harm than any intended good. StressGuard has a pH of 7.0. It will not affect the pH of an aquarium, even at large doses. There are no other products on the market that can compare to the effectiveness of StressGuard.Directions:Use 1/2 - 1 capful (2.5 - 5 mL) to every 40 L (10 gallons*) daily until signs of stress have abated or healing is complete. Dose may be safely doubled.

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$19.05
Seachem Phosguard - 2 Litre
2 reviews
In Stock

PhosGuard is a high capacity and high efficiency filtration product for removing phosphates and silicates from marine or fresh water aquaria.Unlike competing products, PhosGuard is bead-shaped for optimum flow characteristics and has an exceptional porosity for enhanced capacity.PhosGuard has a working capacity to remove 20 to 60 mg/L phosphate in 100 gallons with a similar impact on silicates. It may be used continuously or intermittently, and will not release removed phosphate.PhosGuard will cause a decline in hair algae and enhance coral growth.Each liter treats up to 300 gallons.Marine or freshwater use.

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$47.00
Seachem Flourish Phosphorus - 500ml
1 review
In Stock

Flourish Phosphorus is a safe solution (4500 mg/L phosphate) of potassium phosphate that takes the guess work out of phosphate dosing. Unlike competing products that mix nitrate and phosphate in a fixed ratio, Flourish Phosphorus (being nitrate free) allows you to dose phosphorus according to the needs of your plants without the risk of overdosing nitrates. When used as directed Flourish Phosphorus will enhance and accelerate the growth of aquatic plants without enhancing algae growth.For maximum benefit use with Flourish Nitrogen and Flourish Potassium.Unlike competing products, Flourish Phosphorus is entirely nitrogen-free, making it possible to adjust the Phosphorus level in an aquarium without affecting nitrogen levels.Directions: Use 2.5 mL (half a cap) for each 80 L (20 gallons*) once or twice a week or as needed in response to signs of phosphorus deficiency (e.g. stunted growth, plant dark green).

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$15.35
Seachem CoralCrete - 4oz Purple
In Stock

Seachem CoralCrete is two-part epoxy putty that can be used to secure coral to rock work or to fuse together rock work for more stable foundations in reef aquaria. It has a working time of 5 minutes which allows for plenty of work time while also quickly securing coral or rock.CoralCrete is ideal for working with larger colonies of branching coral, most large polyp coral or adhering plating coral to rock work.CoralCrete is safe for aquarium inhabitants when used as directed.Features Epoxy adhesive for securing coral to rock work Fully cures submerged or emerged within 24 hours Matches synthetic reef rock Marine and freshwater safe DirectionsFor sensitive skin, wear latex gloves. Cut off desired amount of CoralCrete. Replace unused CoralCrete into plastic storage tube. Remove film and knead CoralCrete together until uniform color is achieved. Once mixed, CoralCrete can be used to adhere coral or rock, either submerged or emerged. Press firmly around base or contact point of coral or rock to insure CoralCrete penetrates pores and surface grooves.Curing begins in about 5 minutes, hardening in about 15 minutes. CoralCrete cures fully in 24 hours. Protein Skimmers may over activate during cure time.

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$13.00
Seachem Flourish Tabs - 10 Pack
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Flourish Tabs are growth stimulating tablets for plant roots. They contain essential trace elements, amino acids, and vitamins. They are rich in iron, manganese, magnesium, calcium, potassium, inositol, choline B12, biotin, and other factors that have been determined to be beneficial to aquatic plant roots. They contain no phosphate or nitrate that would promote algae proliferation. Each pack of ten tablets treats a 12 x 30 inch plant bed twice.Perfect for the beginner, Flourish Tabs contain all the nutrients found in Flourish in a dry, tabular form. These tabs are inserted into the gravel, providing direct, time-released fertilization to the plants' root zone. Nutrients are slowly made available through enzymatic action of the plants' roots on the tabs.Directions: Insert one Flourish Tab in the gravel for every 10-15 cm (4-6 in.) radius. A standard 10 gallon aquarium requires 6 tabs. Distribute the tablets evenly throughout the gravel bed. Push each tablet midway into the gravel bed. Add new tablets once every one to three months for optimal plant growth. Tabs will not alter pH, but, in very soft or unbuffered water, they have slightly acidic properties similar to peat moss.

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$12.15
Seachem Stability - 2 Litre
In Stock

Stability will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome".Stability is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite and nitrate.Unlike competing products, the bacteria employed by Stability are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of over use.Stability is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management.500ml of Stability will treat approximately 230 gallons for new aquariums, and 2000 gallons for established aquariums.

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$70.00
Seachem Reef Kalkwasser - 1 KG
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Reef Kalkwasser is a pure calcium hydroxide with unsurpassed purity and solubility characteristics. This calcium hydroxide meets or exceeds the purity of competing brands designated for reef use.Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that are used in an automated dosing system that replaces evaporated water.Kalkwasser solutions maintain calcium directly and carbonate alkalinity indirectly. However, its capacity to perform these functions is dependent on evaporation rate and CO2 concentration. If the these two factors are insufficient you can provide additional calcium with Reef Advantage Calcium, Reef Complete, or Reef Calcium, and carbonate alkalinity with Reef Builder or Reef Carbonate (do not mix these directly with a kalkwasser solution).Reef Kalkwasser can also precipitate phosphates and impurities from the makeup water while maintaining a high pH which is important for proper calcification rates and for oxidizing various organics in reef aquaria.500 g makes 650 L (166 gallons) of kalkwasser solution.

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$37.10
Seachem Alkaline Buffer - 600 Gram
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Alkaline Buffer is a non-phosphate buffer designed to raise pH and alkalinity (KH) and buffer with Acid Buffer.These buffers are designed for the planted aquarium or for very hard water where phosphate buffers may pose an algae or cloudiness problem. Alkaline Buffer raises pH and buffers between 7.2 and 8.5. It is gentle, safe, and enhances the freshwater environment.What distinguishes Alkaline Buffer from other buffers is that it does not contain phosphates. This makes it ideal for the planted aquarium, where excess phosphate could contribute to undesirable algae growth.

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$17.40
Seachem Prime - 4 Litre
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Prime is a complete conditioner for both marine and freshwater use that removes chlorine, chloramine, and detoxifies ammonia and nitrite.It also provides essential ions and stimulates natural slime coat. It will also detoxify any heavy metals found in the tap water at typical concentration levels.Prime also enhances nitrate removal. It should be the first choice conditioner when setting up a new tank, adding, or changing water. No other product is required to make water safe, even in high chloramine situations.Unlike competing products, Prime does not cause a pH drop or over-activate skimmers.A 100 mL bottle treats over 1,000 gallons, much more than competing products.

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$129.45
Seachem Flourish - 2 Litre
In Stock

Seachem Flourish - 2 Litre Overview Flourish is a comprehensive plant supplement for the natural freshwater aquarium. It contains a rich assortment of important micro elements, trace elements and other nutrients. These include calcium, magnesium, iron and other important elements that have been shown to be beneficial to aquatic plants. For macro element (NPK) fertilization, use Flourish Nitrogen, Flourish Phosphorus or Flourish Potassium as needed. Unlike competing products, Flourish is designed to be used in conjunction with other macro and micro-nutrient supplements. Other manufacturers try to include ALL necessary nutrients, leading to overdoses of micro-nutrients in an attempt to raise macro-nutrient levels. How to Use Use 1 capful (5 mL) for each 250 L (60 gallons*) once or twice a week. For smaller doses, please note that each cap thread is approximately 1 mL. Refrigeration after opening is recommended but not required.

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$52.60
Seachem Pristine - 500ml
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Pristine uses bio-augmentation, a non-chemical and natural method, to improve water quality. It provides bacteria that break down excess food, waste and detritus in freshwater and marine systems. It will also reduce excess nutrients (e.g. ammonia, nitrates, and nitrites) that may fuel the growth of nuisance and disease-causing organisms.Pristine increases water clarity and promotes overall better health for the aquatic environment.The bacteria species in Pristine thrive in fresh or salt water and can utilize a wide range of organic compounds, including fats that can cause unsightly films. Unlike traditional nitrifying bacteria, this bacterial blend can adapt to harsh or low oxygen environments and continue to multiply and improve water conditions. Biopolymers produced by established bacterial colonies trap particulates and increase water clarity.The species of bacteria in Pristine are a unique blend, specifically developed for hardiness and their ability to adapt to a wide variety of environmental conditions.DirectionsShake well before use. Turn off UV/ozone. Use 1 capful (5 mL) for each 40 L (10 US gallons). Then use a maintenance dose of 1 capful (5 mL) per 80 L (20 US gallons) with additions of livestock or the disruption of the biofilter through cleaning or medications. Antibiotics should be removed with fresh carbon and a water change before adding bacteria. Allow 2 or 3 days for the bacteria to become established before using UV sterilizers or ozone. Recurring problems with high nutrients can indicate overstocking, overfeeding or inadequate filtration.

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$25.40
Seachem Flourish Advance - 500ml
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Flourish Advance is an all-natural, biologic growth enhancer for aquatic plants. Its advanced formula contains phytohormones, minerals, and nutrients that dramatically stimulate the growth of both roots and shoots in aquatic plants.Phytohormones are a group of naturally occurring compounds that play crucial roles in regulating plant growth in a wide range of developmental processes, including cell division, formation and activity of shoot meristems, induction of photosynthesis gene expression, leaf senescence, nutrient mobilization, seed germination, root growth and stress response.Used regularly, it also enhances mineral absorption and improves disease resistance. It is non-toxic and completely safe for all plant varieties as well as for fish and aquatic organisms.During the first ten to fourteen days after application, Flourish Advance works to stimulate root growth beneath the surface. After this initial induction period, significantly enhanced growth in the leaves and stems of the plants will occur.DirectionsShake well before use. Use 1 capful (5 mL) for every 80 L (20 US gallons). Dose daily or as required to maintain plant growth.Guaranteed Analysis Available Phosphate (P2O5) 0.04% (derived from Potassium Chloride, Potassium Phosphate, Sodium Phosphate, Calcium Chloride, Magnesium Chloride, Amino acids, Ascorbic Acid, Sugar Alcohols, Phytohormone salts), Soluble Potash (K2O) 0.45%, Calcium (Ca) 0.04%, Magnesium (Mg) 0.04%

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$18.35
Seachem Reef Trace - 500 mL
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Reef Trace supplies a broad range of trace elements demonstrated to be necessary for proper reef health and growth.Trace elements are normally depleted by utilization, oxidation and precipitation. The latter two processes occur more rapidly than with other micronutrients. This makes it important to restore trace elements on a regular basis.Reef Trace may be used alone or in conjunction with Reef Plus. Best results are obtained when both are used.Reef Trace is nitrate/phosphate free.

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$15.45
Seachem Phosguard - 1 Litre
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PhosGuard is a high capacity and high efficiency filtration product for removing phosphates and silicates from marine or fresh water aquaria.Unlike competing products, PhosGuard is bead-shaped for optimum flow characteristics and has an exceptional porosity for enhanced capacity.PhosGuard has a working capacity to remove 20 to 60 mg/L phosphate in 100 gallons with a similar impact on silicates. It may be used continuously or intermittently, and will not release removed phosphate.PhosGuard will cause a decline in hair algae and enhance coral growth.Each liter treats up to 300 gallons.Marine or freshwater use.

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$26.50
Seachem Flourish Nitrogen - 500ml
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Flourish Nitrogen is a concentrated (15,000 mg/L) blend of nitrogen sources. It provides nitrogen in both the nitrate form and the plant-preferred ammonium form. However, no free ammonia is released because the ammonium in Flourish Nitrogen is complexed and unavailable until utilized by the plants.Flourish Nitrogen also provides nitrate for those plants that can readily utilize nitrate as well. For maximum benefit use with Flourish Phosphorus and Flourish Potassium.Unlike competing products, Flourish Nitrogen is entirely phosphorus-free, making it possible to adjust the nitrogen level in an aquarium without affecting phosphorus levels.Directions: Use 2.5 mL (half a cap) for each 160 L (40 gallons*) twice a week or as needed in response to signs of nitrogen deficiency (e.g. stunted growth, chlorosis). For smaller doses, please note that each cap thread is approximately 1 mL.Because one-half of the nitrogen in Flourish Nitrogen is from nitrate you can get a reasonable estimate of nitrogen levels by doubling a nitrate reading, or, you can use Seachem's MultiTest: Total Nitrogen (coming soon!) to accurately measure total nitrogen while distinguishing between nitrate, ammonia and organic nitrogen.

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$15.35
Seachem Matrix - 1 Litre
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Matrix is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste.Matrix is a porous inorganic solid about 10 mm in diameter. Each liter of Matrix provides as much surface (>~700 m2) as 170 liters of plastic balls! Plastic bio-materials provide only external surface area, whereas Matrix provides both external and internal macroporous surface area.These macropores are ideally sized for the support of nitrifying and denitrifying bacteria. This allows Matrix, unlike other forms of biomedia, to remove nitrate along with ammonia and nitrite, simultaneously and in the same filter.Matrix is completely inert and will not breakdown. It need not be replaced. Since the majority of the bacteria are internal, Matrix may be rinsed when needed without damaging the filter. Matrix is compatible with all types of wet or wet-dry filters.

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$16.85
Seachem Phosguard - 500 mL
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PhosGuard is a high capacity and high efficiency filtration product for removing phosphates and silicates from marine or fresh water aquaria.Unlike competing products, PhosGuard is bead-shaped for optimum flow characteristics and has an exceptional porosity for enhanced capacity.PhosGuard has a working capacity to remove 20 to 60 mg/L phosphate in 100 gallons with a similar impact on silicates. It may be used continuously or intermittently, and will not release removed phosphate.PhosGuard will cause a decline in hair algae and enhance coral growth.Each liter treats up to 300 gallons.Marine or freshwater use.

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$16.20
Seachem Reef Advantage Magnesium - 2.2 KG
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Reef Advantage Magnesium is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the ionic ratios found in natural sea water.Reef Advantage Magnesium contains no ammonia! This is a common contaminant in every liquid magnesium supplement on the market.Severely depleted levels of magnesium (below 800 mg/L) can cause depressed pH levels and an inability to maintain proper calcium levels. Magnesium depletion is commonly associated with the use of kalkwasser.600 g treats 10,000 L (2,500 gallons).

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$33.45
Seachem Algae Scraper - 12 Inch
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The Seachem Algae Scraper is designed with versatility in mind. With three retractable blades: metal, plastic, and soft pad, it is suited for both glass and acrylic aquariums. It is lightweight and features an ergonomic handle making it comfortable to hold in multiple positions. In addition, it floats for easy retrieval. Finally, its white color makes it easy to see the algae you want to remove and when you've effectively removed it.Features Ergonomic handle allows for easy use in multiple positions Retractable blade housing safely hides blade while not is use. White design contrasts with algae so you can see what you are removing Floats for easy retrieval Handle hole for hanging storage Safe for both fresh and saltwater aquariums Comes complete with metal scraper blade and pad. Remove blade for plastic edge scraper.

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$24.10
Seachem Flourite Black Freshwater Substrate - 15lb
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Flourite Black is a specially fracted, stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any aquarium environment.Flourite Black is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black is not chemically coated or treated and will not alter the pH of the water.Although pre-washed, it may be rinsed before use to remove residual dust. Dust can also be minimized by filling aquarium slowly and dispersing water so that the Flourite Black bed is not disturbed. Slight initial cloudiness is normal and will clear rapidly (2-12 hours). To shorten the cloudiness period use Clarity in conjunction with mechanical filtration (such as filter floss).

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$33.65
Seachem Matrix - 2 Litre
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Matrix is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste.Matrix is a porous inorganic solid about 10 mm in diameter. Each liter of Matrix provides as much surface (>~700 m2) as 170 liters of plastic balls! Plastic bio-materials provide only external surface area, whereas Matrix provides both external and internal macroporous surface area.These macropores are ideally sized for the support of nitrifying and denitrifying bacteria. This allows Matrix, unlike other forms of biomedia, to remove nitrate along with ammonia and nitrite, simultaneously and in the same filter.Matrix is completely inert and will not breakdown. It need not be replaced. Since the majority of the bacteria are internal, Matrix may be rinsed when needed without damaging the filter. Matrix is compatible with all types of wet or wet-dry filters.

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$29.60
Seachem Flourish Trace - 500ml
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Flourish Trace supplies a broad range of trace elements demonstrated to be necessary for proper plant health and growth.Trace elements are normally depleted by utilization, oxidation and precipitation. The latter two processes occur more rapidly than with other micronutrients. This makes it important to restore trace elements on a regular basis. Flourish Trace may be used alone or in conjunction with Flourish. Best results are obtained when both are used.Flourish Trace is different by separating the minerals out into a separate product, one can dose it on a more frequent basis than a broad spectrum supplement without worrying about a build up of the more slowly used components. Directions: Use 1 capful (5 mL) for every 80 L (20 gallons*) twice a week.

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$15.35
Seachem Clarity - 500ml
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Clarity is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe.Clarity is the only clarifier on the market that does it all! Clarity will clear all types of clouding including, but not limited to, chemical clouding and particulate clouding (i.e. stirred up gravel bed). Freshwater and Marine. Plant and reef safe.Many companies manufacture multiple products to clear up each type of cloudiness and each different environment (e.g. freshwater, marine, reef, etc.). Some companies have developed products that will clear most types of cloudiness, but their application requires two separate bottles of product. Clarity contains compounds that will clear all types of cloudiness in all environments. Clarity contains both precipitating and flocculating agents in the same bottle, enabling all types of cloudiness to be removed in one dose. Directions: Use 1 capful (5 mL) for every 80 L (20 gallons). In some situations the cloudiness may increase slightly after adding Clarity, however this is normal and is a sign that Clarity is actively working. Rapid clarification will follow. In the case of chemical or particulate clouding clean filter floss or cartridge after tanks clears.

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$22.05
Seachem Matrix Carbon - 1 Litre
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MatrixCarbon is a truly unique activated carbon, bead shaped for optimal hydrodynamics. This provides maximum water flow and contact with a high density of adsorptive sites without the compacting common to granular activated carbon.MatrixCarbon has a very low ash content as indicated by its minimal impact on pH. Even when added to distilled water, it does not raise pH above 7.0.While all carbons contain phosphate, regardless of false claims to the contrary, MatrixCarbon has the lowest leachable phosphate content of all major carbon brands tested.It out-performs other best grade carbons by at least two-fold when compared for total capacity to remove aquarium organic matter, rate of adsorption, and duration of use. 250 mL will easily treat 100 gallons for several months.It is very clean and nearly dust free.Marine or freshwater use.

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$29.85
Seachem GarlicGuard - 250ml
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Seachem GarlicGuard - 250ml Overview GarlicGuard is an all natural garlic scented odor and flavor enhancer for freshwater and saltwater fish. Our research has shown that many fish are attracted to natural odors, such as garlic. Simply mix GarlicGuard with any food item to attract the interest of finicky eaters, e.g. discus and marine angelfish. GarlicGuard is safe for reef and planted aquariums. Features Concentrated garlic supplement Enhances appetite Also contains Vitamin C, a strong anti-oxidant Shake well before use. Soak food in GarlicGuard before feeding. Safe for use with medicated foods (to attract the interest of finicky eaters to the medicated food). For example, for enhanced effectiveness against Ich and other parasites use Seachem's Focus and MetroPlex as follows: Add 1 measure of MetroPlex to 1 measure of Focus per tablespoon of food. Completely soak this food mix in GarlicGuard, refrigerate, and feed once or twice daily for 1-2 weeks.

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$9.75

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