Salifert Phosphate Eliminator binds phosphate and is removed by skimming more effectively than normal. When dosed, it immediately makes phosphate unavailable to algae. It also avoids binding of phosphate to corals, live rock and sand, increasing the ability of corals and calcareous algae to grow much faster. The phosphate bound by this supplement and not removed by skimming within 24 hours will be set free again by bacterial action. This will be especially the case when dealing with a rather high phosphate concentration. Daily dosage is required in such cases. Increased phosphate concentration in the skimmed foam will be observed a couple of hours after Phosphate Eliminator has been dosed.