GFO and Reactor Media

RowaPhos Phosphate Removal Media - 1000 mL Overview Large format of the industry standard GFO-type media for sustained low phosphate and silicate levels. Ideal for big reef systems and high-bioload aquariums where controlled nutrient reduction and long change intervals are desired. Features Patented ferric hydroxide adsorbent with high capacity Does not leach phosphate back when exhausted Compatible with fluidised reactors for optimal contact Damp-packed to keep pores open Specifications Typical removal guide: 1000 mL removes ~3 ppm PO4 from ~1000 US gal when fresh Adsorption capacity: ~25 g PO4 per kg media Use: saltwater or freshwater UPC/EAN: 4032974404108 How to use 1000 mL Keep media damp; reseal promptly after use For reactors, lightly rinse and run with only a gentle shimmer at the media surface; for bags/canisters do not rinse Test PO4 frequently and replace as needed; avoid sudden drops

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RowaPhos Phosphate Removal Media - 500 mL Overview High-capacity phosphate and silicate remover for larger systems or continuous preventative use. RowaPhos is trusted for stable low nutrients and does not release phosphate back into the water when spent, simplifying maintenance windows. Features Engineered FeOOH adsorbent made in Germany for water treatment Non-leaching performance when exhausted Low dust; optimized for gentle reactor tumble Damp media preserves internal porosity Specifications Typical removal guide: 500 mL removes ~3 ppm PO4 from ~500 US gal when fresh Adsorption capacity: ~25 g PO4 per kg media Use: saltwater or freshwater UPC/EAN: 4032974404054 How to use 500 mL Keep sealed to maintain moisture; do not allow to dry For bags/canisters do not rinse; for reactors, rinse lightly then fluidise gently Avoid rapid nutrient swings; start with modest amounts and increase as needed Replace when phosphate begins to rise on tests

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RowaPhos Phosphate Removal Media - 250 mL Overview Premium GFO-type adsorbent that removes phosphate and silicate efficiently without leaching. The 250 mL size suits medium systems or higher nutrient loads and maintains high clarity and color in SPS and LPS reefs when changed proactively based on testing. Features Patented FeOOH media engineered for water treatment Non-leaching even when exhausted Effective in reactors or filter bags Damp-packed to preserve pore structure for fast adsorption Specifications Typical removal guide: 250 mL removes ~3 ppm PO4 from ~250 US gal when fresh Adsorption capacity: ~25 g PO4 per kg media Use: saltwater or freshwater UPC/EAN: 4032974404023 How to use 250 mL Keep media damp at all times Do not rinse for bag/canister use; for reactors, briefly rinse then fluidise gently so only the top surface shimmers Do not place loose in the tank; contain between filter wool if not using a reactor Test PO4 regularly and replace when it rises

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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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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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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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RowaPhos Phosphate Removal Media - 5 KG Overview Bulk bucket for commercial systems or long-term use. The same patented FeOOH technology provides top-tier phosphate and silicate control without leaching and arrives in a moisture-retaining liner to preserve performance during storage. Features Professional-grade iron hydroxide adsorbent Non-leaching even when exhausted Ideal for large reactors or routine refills across multiple tanks Inner bag helps retain moisture during storage Specifications Typical removal guide: 5 kg removes ~3 ppm PO4 from ~4500 US gal when fresh Adsorption capacity: ~25 g PO4 per kg media Use: saltwater or freshwater UPC/EAN: 4032974404504 How to use 5 KG Keep the inner liner tied to prevent drying; media must remain damp For reactors, rinse lightly and run with a gentle shimmer; for bag/canister use do not rinse Use smaller amounts changed more often to avoid rapid PO4 reduction

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ReBorn is a coarse aragonite media for calcium reactors.Composed of fossil skeletons of reef building corals sustainably harvested from pristine sites in the Western Pacific. When used in a calcium reactor where it is dissolved with CO2, ReBorn not only replenishes calcium and carbonate alkalinity, it also replenishes strontium and trace elements in the same proportions they are used by corals to build their skeletons. In this way ReBorn replaces exactly what corals need to grow. Unlike many other calcium reactor media, the coarse size of ReBorn allows for unrestricted water flow and easy diffusion of carbon dioxide, for maximum efficiency and easy maintenance of the calcium reactor. The naturally porous structure promotes carbon dioxide penetration assuring a uniform dissolution rate.ReBorn dissolves completely and will not turn to mush! These features combined with it's very low phosphate and silicate content mean that ReBorn is the ideal media to use for promoting the growth of live corals, clams, calcareous algae, and other calcifying creatures in a reef aquarium.

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Comes ready to use in a convenient bag! A great way to use carbon on smaller tanks.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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RowaPhos Phosphate Removal Media - 100 mL Overview RowaPhos is a patented synthetic ferric hydroxide (FeOOH) adsorbent that rapidly lowers phosphate and also binds silicate helping to curb nuisance algae while remaining safe for marine and freshwater systems. Unlike many alternatives it does not leach phosphate back once exhausted and is supplied slightly damp for maximum efficiency. Features Engineered iron hydroxide media targets phosphate and silicate High adsorption capacity with proven performance Will not release bound phosphate back into the water Works in reactors or filter bags; ideal for reef tanks Ships damp to keep pores open for better uptake Specifications Media type: granular ferric oxide hydroxide (FeOOH) Typical removal guide: 100 mL removes ~3 ppm PO4 from ~100 US gal when fresh Adsorption capacity: approx. 25 g phosphate per kg media (manufacturer guidance) Use: saltwater or freshwater UPC/EAN: 4032974404016 How to use 100 mL Keep media damp; do not allow to dry out Do not rinse for non-fluidised use; if using in a reactor, briefly rinse to remove fines then run with very gentle tumble Place in a reactor or sandwich between filter wool in a canister; do not sprinkle loose in the tank Start with a small amount and replace more frequently to avoid rapid PO4 drops Monitor with a reliable phosphate test and replace when levels begin to rise

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Naturally Reduce Nitrates and Phosphates from the Aquarium. Bio-Spheres biopellet media is a 100% pure biologically degradable polymer solid carbon source that helps reduce nitrates and phosphates within a marine environment by encouraging the growth of beneficial bacteria and enzymes on the media's surface. Bio-Spheres provides a food source required for beneficial bacteria to reproduce and metabolize nitrates and phosphates. Directions for Use: It's recommended to use this media in a Bio Pellets Reactor that designed for Bio Pellet media. We suggest looking at our extensive line of Reef Octopus Bio-Pellets Reactors. Ultimately you want to make sure that there have enough water flow throw the reactor to supply needed oxygen to prevent hydrogen sulfate (H2S) from being produced which can be harmful to your aquarium. Use approximately 100 - 150ml of Bio-Spheres per 25 gallons of system volume or what is suggested for your reactor of choice.When introducing any biopellet media for the first time, add small amounts gradually over the period of a couple months to prevent sudden crashes of Nitrate and phosphate levels and eliminates the risk of a bacterial bloom within the systemRinse the Bio-Spheres with purified fresh water and place in a properly sized fluidized media reactor with sufficient flow to keep them gently simmering. It is suggested to allow the media to soak overnight especially when installing the system for the first time. If the media begins to clump or slime up, they will be less effective and may turn anaerobic causing the production of hydrogen sulfide. The Reef Octopus BioPellet Reactor and Biochurns are the most effective reactors for the bio-pellet media. If possible it is best to place the reactor in the same chamber as the protein skimmer or direct the output of the reactor into the same area as the protein skimmer. Within 3-4 weeks the Bio-Spheres will be sufficiently colonized with bacteria and will begin to reduce the organic compounds within your system.Aquariums with high bio-loads may experience a short period of temporary water cloudiness. Maintain: Bio-Spheres will remain effective until they disappear, which normally take approximately 8 months to a year. We recommend that you top off with fresh Bio-Spheres every 3 months to maintain maximum effectiveness.Bio-Spheres will remain effective until they disappear, which normally take approximately 8 months to a year. We recommend that you top off with fresh Bio-Spheres every 3 months to maintain maximum effectiveness.

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DVH All-in-One Biopellets (1000ml) Overview The 1000ml size of DVH All-in-One Biopellets delivers efficient simultaneous control of nitrate and phosphate for larger or heavily fed reef systems. The advanced pellet architecture accelerates bacterial colonization and supports stable long-term nutrient reduction when tumbled correctly in a reactor with strong skimming. Features Advanced pellet matrix supports both nitrifying and denitrifying bacteria for balanced nutrient export Helps curb nuisance algae by lowering dissolved nutrients without daily liquid carbon dosing Pairs well with aggressive protein skimming and consistent test-and-adjust routines Made in the Netherlands; consistent pellet quality and low fines Specifications Volume: 1000ml Recommended dosage: 35–150ml per 100L / 25 gal (ramp up over several weeks) Media type: biodegradable polymer biopellets UPC/EAN: 094922671080 Directions Use in a dedicated biopellet reactor; target a lively tumble without grinding pellets Begin with a partial dose especially if NO3 > 20ppm; increase gradually over 2–6 weeks Discharge reactor effluent near the skimmer intake to export excess bacteria Maintain aeration; replenish pellets every 6–12 months as volume diminishes

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DVH All-in-One Biopellets (500ml) Overview DVH All-in-One Biopellets provide a next-gen solid carbon source engineered to reduce nitrate and phosphate simultaneously. A unique microporous matrix and a secondary facilitator support robust nitrifying and denitrifying biofilms so bacteria work more efficiently than with standard pellets helping stabilize nutrients in modern reef systems. Features Microporous structure with secondary facilitator to nourish beneficial bacteria for efficient nutrient control Targets nitrate reduction while supporting phosphate uptake via biomass export Designed for use in a fluidized biopellet reactor or high-flow canister section Stable long-term performance with gradual pellet consumption over months Specifications Volume: 500ml Recommended dosage: 35–150ml per 100L / 25 gal (increase gradually if NO3 > 20ppm) Media type: biodegradable polymer biopellets UPC/EAN: 094922671097 Directions Place pellets in a fluidized reactor with vigorous tumble; route reactor outlet to the protein skimmer intake Start with ~35–50ml per 100L and add in stages toward the target range over 2–6 weeks Maintain strong aeration and skimming; monitor NO3 and PO4 and top up pellets every 6–12 months as they are consumed For best results keep NO3:PO4 near ~1:0.01; ensure some PO4 is present to drive bacterial processing

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DVH NP Reducing Biopellets (500ml) Overview The Original DVH NP Reducing Biopellets are a proven solid carbon media composed of 100% biodegradable polymers. When fluidized they foster dense bacterial colonies that consume nitrate and phosphate converting waste into removable biomass for clearer water and healthier corals. Features 100% pure biodegradable polymers with no fillers or antioxidants Simultaneous nitrate and phosphate reduction via bacterial immobilization Localizes bacterial growth in the reactor to avoid biofilm buildup in plumbing Designed for fluidized reactors or high-flow canister sections Specifications Volume: 500ml Typical starting dosage: ~50ml per 100L; increase toward 100–150ml per 100L as the system adapts Pellet life: add new pellets every 6–12 months as they are consumed UPC/EAN: 094922675002 Directions Rinse lightly if dusty then place in a fluidized reactor with strong tumble; route outlet to the skimmer Start at 25–50% of your target if NO3 is high; add in stages every few days to prevent blooms Ensure vigorous aeration and maintain a small measurable PO4 to support bacterial processing Test NO3 and PO4 weekly and top up pellets as volume decreases over time

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ReMag is a magnesium-rich natural stone sized to blend well with ReBorn and other calcium carbonate media for use in calcium reactors.ReMag makes maintaining the magnesium level in your reef a no-brainer. Simply use ReMag in a calcium reactor according to the directions to supply the magnesium your corals need.Aside from saving you time and money, it gives you more reason to enjoy watching your corals grow.

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DVH NP Reducing Biopellets (1000ml) Overview The 1000ml pack of DVH NP Reducing Biopellets fuels beneficial bacteria with a controlled solid carbon source to lower nitrate and phosphate in established reef tanks. Place in a reactor for consistent tumble and pair with efficient skimming for reliable long-term export. Features Original NP-reducing formulation trusted by public aquaria and hobbyists Supports both aerobic and anaerobic zones within the pellet bed for comprehensive processing Helps reduce maintenance compared to daily liquid carbon dosing Long service life with periodic top-ups as pellets are metabolized Specifications Volume: 1000ml Typical dosage range: 50–150ml per 100L depending on bioload and goals Pellet life: replenish every 6–12 months as needed UPC/EAN: 094922671004 Directions Use in a biopellet reactor with lively tumble; direct effluent to the skimmer intake Introduce gradually over several weeks to allow biofilm maturation and avoid oxygen depletion Maintain strong aeration; keep a small measurable PO4 to enable nitrate reduction Monitor nutrients and add pellets to maintain reactor volume as they are consumed

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