"Optimal For Small And Large Polyp Stony Corals, Soft Corals, Clams And All Other Salt Water Animals In Reef Tanks. Dosage: 1 To 2 Times Per Week 1 Ml / 100 L The Dosage Can Be Increased Or Given Up To Daily When Needed. 1 Ml Reduces Approx. 8 Mg Po4. The Cloudiness In The Water Is Harmless For All Fish As Well As Sensitive Corals."