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Reef Advantage Magnesium, 4 kg / 8.8 lbs

5.0 out of 5 stars 6 customer reviews

Price: $46.70 & FREE Shipping on orders over $49. Details
Only 1 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
  • Raises Magnesium And Contains No Ammonia
  • A Concentrated Optimized Blend Of Magnesium, Chloride, And Sulfate Salts Designed To Restore Depleted Levels Of Magnesium
  • Minimal impact to the ionic ratios found in natural sea water
  • Contains No Ammonia, A Common Contaminant In Every Liquid Magnesium Supplement On The Market
  • 300 Grams Treats 1200 Us Gallons
8 new from $44.00

$46.70 & FREE Shipping on orders over $49. Details Only 1 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Reef Advantage Magnesium, 4 kg / 8.8 lbs
  • +
  • Reef Advantage Calcium, 4 kg / 8.8 lbs
  • +
  • Reef Buffer, 4 kg / 8.8 lbs
Total price: $146.55
Buy the selected items together


Product Description

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. DO NOT OVERDOSE: Excess magnesium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if magnesium & carbonate additives are added on alternate days or at least 30 minutes apart. Slight clumping of this product may be encountered but does not impact its use; any clumps will break up very easily. Guaranteed Analysis: Magnesium (Mg) 8.00%

Product Details

  • Product Dimensions: 8 x 8 x 7.5 inches ; 10 pounds
  • Shipping Weight: 10.8 pounds (View shipping rates and policies)
  • ASIN: B0002DGLR6
  • Item model number: 639
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank: #64,018 in Pet Supplies (See Top 100 in Pet Supplies)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Important Information

Directions
BEGINNER: Use 5 g (1 level teaspoon) per 80 L (20 gallons*) twice a week. Dissolve in at least 250 mL (1 cup*) of freshwater. ADVANCED: Check magnesium level, then follow addition regimen above until magnesium is adjusted to 1200–1350 mg/L. Each 5 g/80 L will raise magnesium by about 5 mg/L. Amount or frequency can be adjusted, but do not exceed 25 g/80 L per day. Thereafter, use as required to maintain magnesium. EXPERT: After determining the magnesium depletion rate, set up a continuous drip system. Use the following formula to determine how much to add to your top-off water: g=vm/80 (g=grams to add to top off water, v=volume of tank in liters, m=amount to raise magnesium in mg/L). For example, if you want to raise magnesium by 10 mg/L in a 200 liter tank, then you would add (200x10)/80=25 g into the top-off water. [For reference: 1 gallon*=3.8 liters, 5 g=1 teaspoon*]. HINTS: Use the Reef Status™ Magnesium, Carbonate & Borate to check magnesium levels.DO NOT OVERDOSE: Excess magnesium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if magnesium & carbonate additives are added on alternate days or at least 30 minutes apart. Slight clumping of this product may be encountered but does not impact its use; any clumps will break up very easily.

Customer Questions & Answers

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Top Customer Reviews

Verified Purchase
This is a bit more work than the liquid stuff for sale but the results are fantastic in making coraline grow and stabilizing magnesium in a reef for the corals. Seachem really has the additive market down pat for the most part. I've been using this product for years with great results and no suprises.
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Verified Purchase
We buy in bulk and the price is right with this. It does it job and keeps our 75gl reef healthy and beautiful.
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Verified Purchase
Have been using for years with consistent results. I use it to supplement deficiency in marine salt.
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