Seachem Reef Advantage Magnesium - 600 Gram
Seachem Reef Advantage Magnesium - 600 Gram
Available in stock (13)
✓ This item is eligible for free shipping
Couldn't load pickup availability
Product Description
Product Description
Seachem Reef Advantage Magnesium - 600 Gram
Seachem Reef Advantage Magnesium - 600 Gram is a concentrated powdered magnesium supplement for reef aquariums, designed to restore depleted magnesium while minimizing impact on natural seawater ionic ratios.
Seachem Reef Advantage Magnesium for Reef Stability
Reef Advantage Magnesium helps maintain magnesium in marine aquariums, which is important for calcium stability, carbonate balance, and long-term reef water chemistry. It uses an optimized blend of magnesium, chloride, and sulfate salts and contains no ammonia.
Magnesium Supplement Benefits for Saltwater Aquariums
- Restores depleted magnesium levels in reef aquariums.
- Concentrated 80,000 ppm magnesium blend.
- Optimized blend of magnesium, chloride, and sulfate salts.
- Contains no ammonia.
- Helps support calcium stability and proper reef water chemistry.
- Useful where magnesium has been depleted by kalkwasser use, carbonate overdosing, or low-magnesium salt mix.
Seachem Reef Advantage Magnesium Dosing Details
- Product type: Powdered reef magnesium supplement
- Primary use: Magnesium restoration and maintenance in reef aquariums
- Target magnesium range: 1,200 to 1,350 mg/L
- Standard dose: 5 g per 80 L (20 US gallons) twice weekly
- Expected increase: About 5 mg/L magnesium per 5 g per 80 L
- Package size: 600 g
Directions for Seachem Reef Advantage Magnesium
Use 5 g or 1 level teaspoon per 80 L (20 gallons) twice per week. Dissolve in at least 250 ml (1 cup) of freshwater before adding. Test magnesium and adjust dosing until magnesium is maintained between 1,200 and 1,350 mg/L. Each 5 g per 80 L raises magnesium by about 5 mg/L. Do not exceed 25 g per 80 L per day. Do not directly mix with any carbonate supplement; magnesium and carbonate additives are best added on alternate days or at least 30 minutes apart. Slight clumping may occur and does not affect use.
What's Included
- 1 x Seachem Reef Advantage Magnesium - 600 g
Shipping Info
Shipping Info
FREE SHIPPING OVER $119!*
- does not apply to livestock -
$11.99 FLAT RATE FOR LESS THAN $119.00 - CANADA WIDE!
*EXCEPTIONS:
- Any heavy or bulky items will incur a 100% charge of the actual shipping cost (valid for both Canada and the US). Heavy bulky items include (but are not limited to): salt, dry rock, sand, chillers, sumps, aquariums, stands, and some filter media.
- Frozen or perishable food can only be shipped via UPS Express. We have discounted the express shipping of these items to help the hobbyist out.
- Livestock is covered by a different shipping policy. To view the policy and further information regarding shipping livestock, click here.
GENERAL NOTES:
- We always make our best effort to ship your order via the carrier chosen during the check-out process; however, for some multi-piece shipments and/or remote destinations, we must reserve the right to use another carrier at our discretion (and without prior notice). If you require notice of any changes made to the carrier, please mention it in the special instructions during check-out.
- Upon request, we will ship your dry goods as per your specifications (courier, airlines, on your account, etc.).
- Quoted rates are the carriers live discounted shipping rates after adjusting for any/all shipping promotions.
Returns / Exchanges
Returns / Exchanges
Return Policy — Aquarium Equipment & Supplies
- All returns and/or exchanges must be made within 30 days of receipt of product.
- Before returning or exchanging any goods, you must contact J&L Aquatics to obtain a Return Merchandise Authorization (RMA). Items returned without prior authorization will be declined.
- Returned items must be unused, in original packaging, in as-new condition, and in perfect sellable condition. All returns are subject to inspection upon receipt.
- A 15% restocking fee applies to all online returns. This fee includes the cost of outbound shipping.
- Customer is responsible for return shipping costs on standard returns.
- Order cancellations made before shipping are not subject to a restocking fee.
Non-Returnable Items
- Special order items
- Clearance / final sale items
- Open box items
Regular sale items (non-clearance) are returnable within the 30-day return window, subject to our standard return conditions.
Defective, Warranty & DOA Items
- If you receive an item that is defective, not working, or dead on arrival (DOA), please contact us as soon as possible.
- Confirmed defective and warranty returns have no restocking fee and no Affirm fee. Customer does not pay return shipping — J&L Aquatics will provide a prepaid return label.
- All defective claims are subject to inspection. Items showing signs of customer damage, improper installation, or misuse are not covered under warranty.
Carrier Damage & Lost in Transit
- If your order arrives damaged by the carrier or is lost in transit, please contact us right away with:Photos of the damaged product (if applicable)Photos of the damaged box/packaging (if applicable)A description of the issue
- Important — Do not throw out any packaging! Please keep all original packaging, boxes, and packing materials. These are required to process your claim. Discarding packaging may affect our ability to resolve your claim.
High-Value Items ($100+)
- For items valued at $100 or more, customers must provide a return tracking number before a replacement will be shipped.
Affirm & Financing Orders
- Affirm or similar financing orders that are cancelled or returned in-store are subject to a 5% service charge. This covers the processing fee charged to us by the financing provider.
- The Affirm service charge does not apply to confirmed defective or warranty returns.
J&L Aquatics strives to maintain the lowest prices economically possible. In most cases we have the lowest price in the Canadian marketplace, but in the rare occasion that we do not, please feel free to contact us at 604-444-1161 or through e-mail to discuss an opportunity to price match.
