Powerful Aquarium Water Purification Tablet Water Purification Tablets Fish Tank Water Purifying Agent Water Quality Clariter 3pc Features: removal: These can be neutralized in tap water Preventive : These can improve water quality. OF POLLUTANTS: These tablets promote the settling of suspended solids, improving water . INCREASES FISH SURVIVAL: These tablets create a stable and environment that supports your fish and increases their survival rate by maintaining clean, balanced water. SAFE FOR ALL AQUATIC LIFE: These tablets are gently but effectively formulated and safe for fish, plants and invertebrates. 1 tablet per 50 liters (13.2 gallons) of water. Product details: Color: White Include: 3x water purifying agent NOTES Color may vary slightly due to differences between computer monitors. Please allow a little measurement error due to manual measurement. Please make sure you are OK with it before purchasing.