Cleaning fish tank regularly is essential because fish excreta and uneaten fish food in the water lead to accumulation of foul smelling organic compound which turns the water cloudy. Organic compounds cause algal growth & trap available oxygen, making it difficult for the fish to breathe, which turns the fish sluggish, susceptible to infection and prone to isolation. Bioclean Aquarium is a Natural Fish Tank Cleaner that degrades the organic compounds, control ammonia formation, foul odour emanation and helps you maintain a clear fish tank. To know more click here.