Red Sea
Free next day shipping on orders over £50
Free same day local delivery (20 miles) on orders over £100
Orders under £50 can be collected in store (free) or shipped next day for £5.99
Tanks can be collected in store or drop shipped to your address for free in 1-2 weeks
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Magnesium supplement for balanced formation of coral skeleton
Calcium, magnesium, strontium and carbonate are the basic foundation elements of coral skeletons.
All of these elements need to be available in balanced proportions for positive coral health and growth.
Red Sea'â„¢s MAGNESIUM contains blended salts of magnesium and is part of Red Sea'â„¢s complete Reef Care Program.
1g will raise the Mg level of 100 liters (25 gal) 1.34ppm.
1 kg will make 1.7L of stock solution.
Spend over £50 and receive free next day delivery on your order. All orders can be collected free in-store.
Spend £250 on Corals for free livestock shipping with APC
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