Aquarium Bio Balls are a type of biological filtration media used in aquariums and fish tanks to support the growth of beneficial bacteria. These bacteria play a crucial role in the nitrogen cycle, helping to break down harmful waste products like ammonia and nitrite into less toxic nitrate. Bio Balls are widely used in wet/dry filters, sump tanks, and canister filters to maintain water quality and ensure a healthy aquatic environment. Below is a detailed explanation of their function, design features, and usage.