Specially for desalted water. 

Biologically balanced levels of foundation condition,including adequate alkalinity and stable PH value.

Enriched Calcium, Magnesium, Strontium, and iron, manganese, iodine, selenium and other dozens of sufficient trace elements.

No nitrate,No phosphate,No Ammonium and other toxic components.

An ideal medium for breeding coral, ornamental fish and other coral reef organism in the closed system.