Salifert Coral Grower 500ml.
It contains calcium, strontium and trace elements (except iodine) required for growth and multiplication by corals and the beautiful encrusting pink and red coralline algae. Calcium and strontium are the major cationic constituents of calcareous algae, skeletal material of hard corals and the skeletal needles of soft - leather corals. Growth and multiplication of these organisms means depletion of those substances. The trace elements included in Coral Grower allow organisms to carry out many biological processes.