áRemoves: Disease causing red cyano bacteria (red slime) from live coral.áOxidizes: Trapped organic sludge and sediment.áClarifies: Aquarium water to crystal clear. á Promotes ideal enzyme balance.Safe for reef tanks, all invertebrates, desirable macro algaes, nitrifying bacteria, and fish.Chemi Clean Directions:1. One level scoop (included) per 10 gallons.2. After 48 hours, repeat step 1, if needed.To keep aquarium clear, repeat step 1 once each month. Treats 300 gallons.For best results, turn off UV sterilizer, discontinue protein skimmer and/or ozonizer, and remove Chemi-Pure or carbon filtration for 24 hours following each treatment.Must change water (20%) after full treatment.Boyd Enterprises cannot be held liable for damage caused by improper use of this product.Contains no phosphates, algaecides, or erythromycin succinate. Avoid prolonged skin contact. Keep away from children. Do not ingest. Net wt. 2 grams.