Tidy Tank contains a specifically developed sludge removing bacteria used to remove organic debris from aquarium gravel, filters, tubing, etc. Tidy Tank contains billions (2 billion colony forming units per milliliter) of heterotrophic bacteria. These Bacillus species bacteria rapidly consume carbohydrates, proteins, starches, fats and cellulose that build up in aquariums as the result of feeding, fish waste, decaying plant matter and other organics. As well as eliminating unsightly sludge from the aquarium, these bacteria will also reduce odors that are produced as a result of organic decay. Tidy Tank eliminates debris accumulation in biofilters, preventing the formation of toxic anaerobic zones within the filter media. Tidy Tank will also decrease channeling inside of filters, allowing faster water flow and increased filter efficiency. The Bacillus species in Tidy Tank can function in aerobic and anerobic conditions allowing these organisms to function in the best and worst of aquarium conditions. Using Tidy Tank augements the beneficial microbes already present in the aquarium. Tidy Tank is very stable and has a long shelf life.