B Clear biologically clarifies cloudy aquariums caused by excess organic waste, food, new tank syndrome, decaying fish or plant remnants, etc. The enzyme based formula is effective in 24-48 hours and eliminates milky clouds due to organic causes. To prevent organic cloudiness of aquariums, regular use of NutraFin Waste Control is recommended. Content treats 235 US gallons of freshwater use only. Shipping-Weight: 0.4 lb |