test the source water (i

Phosphate & Nitrate free

Recommended usage is 2 g of Extrax Phos per 1 US-gallon (3

Research has shown that during bleaching events

one that is not naturally present has been added

Calcion Liquid ajo test the source water (iTechnical Background Calcium is one of the most prevalent ions in seawater, and is required for the formation of aragonite, the skeletal material of reef building invertebrates such as corals, clams, tube worms, and their respective allies. In seawater, calcium is present at a concentration of approximately 412 ppm; in reef aquaria, maintaining calcium within a range of 412 450 ppm will enable corals and other reef building invertebrates to grow