Seachem reef advantage calcium 250g
Reef advantage calcium is a non caustic ph 83 86 optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawaterr calcium and carbonates are essential to all coral growth if either becomes deficient coral growth will cease followed by a rapid decline in coral health to prevent this you must provide calcium reef advantage calcium and carbonates reef builder or reef carbonater reef advantage calcium also includes magnesium and strontium i