Our Fish Tank Water Clarifier Contains Biological Algaecidal Enzymes. It Can Effectively Remove Waste And Impurities From The Fish Tank And Clean And Purify The Water In The Bathtub. Inhibit The Growth Of Algae, Ensure That The Bathtub Remains Visually Clear, And Provide A Healthy Living Environment For Fish. Its Usage Method Is Very Simple: Usage Method 1: Every Day, Use A Long Needle To Inject And Draw 10Ml Of The Cleaner /100L Of Water, And Spray It On The Algae Breeding Area. A Course Of Treatment Lasts For 7 Days. Usage Method 2: Add 10 Milliliters Of Detergent To 100 Liters Of Water. First, Dilute It With The Water In The Fish Tank, And Then Directly Add It To The Fish Tank. Harmless To Fish: This Means That If You Follow The Instructions And Precautions On The Bottle, The Prompts On The Detailed Page, And Add It In The Correct Proportion, It Will Not Cause Harm To The Fish. It Can Also Reduce Ammonia And Nitrate, Improve Water Clarity, Maintain The Healthy Balance Of Aquatic Organisms, And Is Suitable For Both Freshwater And Saltwater Fish Tanks, Making It Convenient To Use.