All domesticated species create waste as a byproduct of their diet. Their excrement contains ammonia, which over time will become increasingly concentrated to the point where it is harmful to your pet. It may kill fish by impairing development, decreasing appetite, and causing environmental stress. You obviously can avoid a high level of ammonia by water changing, but it is, by all means, the most impractical way to make sure your ammonia level is safe. There is another way: by using bio filter media. A biological aquarium media filter consists of non-corroding materials with large amounts of surface area nitrifying bacteria cells can colonize. These bacteria use ammonia to fuel their growth while oxidizing it to produce nitrite. The nitrite produced is then converted to a non-toxic chemical called nitrate. In even simpler terms, bio media for fish aquarium contains microbes that could eat pollutant and convert it into environmentally safer compounds. This results in a healthier, cleaner, and safer environment for your fish.

Specification:
Dimensions: 10 x 9.5 x 6 inches Weight: 2.12 Pounds
Package Content:
40 x Filter Bio Ball 500g Biological Ceramic Rings 500g Activated Carbon