Aqua Medic Sea Salt is a top quality product, fulfilling all the requirements of a modern synthetic sea salt. It is formulated from highly purified compounds, and contains a pH buffer and all the essential trace elements needed for saltwater aquaria. It dissolves quickly, leaving no residue, and can be used very shortly after being mixed. Ist quality has been proven by ist selection by numerous public aquaria, many leading wholesalers of saltwater fish, and thousands of coral reef and fish aquaria. It is the economic solution for large scale applications. The content is sufficient for the making of 600 litres of sea water.