Coralline Algae Accelerator Uses a single bottle, multipart approach to stimulating the growth of Coralline algae without promoting nuisance algae growth. Contains fine powdered aragonite, liquid calcium, strontium, magnesium and iodide. CONTAINS: Fine powdered aragonite Over 100,000 mg/L calcium Added magnesium & iodide Red to purple algae that forms on live rock is encouraged by many reef hobbyists. It is very colorful and competes with nuisance algae. Directions Use MICROBE-LIFT/Phosphate Test Strips to check the phosphate level of your tank water. A high phosphate level will inhibit Coralline algae. Other factors to consider in propagating Coralline algae growth are: Carbonate Hardness, light intensity, and reef inhabitants, such as, urchins that feed on it. This bottle contains aragonite powder. Shake well before using. Dosage Rates Add 1 capful (5 mL) per 50 gal. (189 L). Add the product near any area of high water flow or directly into your sump. The tank's water will temporarily cloud. This will clear up in time. If you test for calcium levels wait at least 1.5- 2 hours for product dispersal. The natural concentration of calcium in sea water is 420 ppm and you should maintain your aquarium's saltwater at no more than 420 ppm on a consistent basis. Cautions Keep out of the reach of children Follow directions carefully This product is intended for use with all ornamental and aquarium fish only, and may not be used for fish intended for human consumption.