1 kg - Red Sea Reef Foundation C (Mg)

1 Kg of Red Sea Reef Foundation C
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  • 1 Kg of Red Sea Reef Foundation C
  • Red Sea Reef Foundation System

1 kg - Red Sea Reef Foundation C (Mg)

67% Recommend this to a friend (2 of 3)

SKU: 207458

reg. $20.99

Special Price: $17.84

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Quick Overview

Red Sea Foundation C is a component of the Red Sea Reef Foundation program for healthy and vibrant corals. Red Sea Foundation C is a blend of magnesium salts in the proper ratio for seawater.

1 kg Powder supplement

Once mixed into solution, 1 mL liquid supplement will raise the Magnesium level of 25 gallons by 1 ppm.


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Full Details

Reef Foundation Instructions


Red Sea Reef Foundation Manual


Also available in 500 mL Liquid Supplement.



3 Items

  • Wurkt fer me By JasonK on 9/16/2015

    I've been using the red sea products for a year now and have been impressed. I don't have the same issues as Jose but i dont use an auto dosing system since mag is pretty stable in my tank. I just mix with rodi water when i need to boost the levels. I typically mix 28 grams in about 1/3rd gallon of water, mix for a few seconds then add to my sump. I wonder if Jose is using a much higher concentration or salted water.
  • If You Love Red Sea, But Want To Save Money, This Is Your Ticket By Lindsey on 1/27/2014

    Personally I love the red sea line for a number of reasons I won't get into. The liquids are convenient, but I also like to save my reefing budget for more coral, so the powdered versions are a win for me. They mix to the same concentration as the liquid bottles, but you can make multiple bottles from each jar of powder. For this magnesium, 1 powder jar will make 3 and 1/3 of the 500 mL bottles. That makes it about 1/3 the price.

    Couple tips: do invest in a decent scale that will weigh in grams if you do not have one, easier and more accurate that way. Also, I don't know what happened with Jose's solution, but I have not had the same issue. When I mix any kind of stock solutions I use RO/DI or distilled and heat the water up to about 80 or 90 F by standing it in a sink full of hot water for a bit. Then I add the powder to the water slowly while stirring constantly. Never had an issue.
  • Not impressed By Jose on 1/29/2013

    I recently purchased the powder supplement to create stock solution for auto dosing. After several days of trying to fully dissolve in a bucket with a maxijet and heater I gave up. I would not recommend this is you intend to use an auto doser as you would have to agitate before dosing. I called Red Sea customer support and they were not much help.