Unique bacteria food specially formulated for marine, reef and freshwater aquariums. Composed entirely of organic compounds. These compounds easily turned to energy by bacteria. During this cycle nitrate and phospate in the water drops rapidly. Algae formation is prevented. Ensures rapid settlement of biological balance in installation and provides healthy water clarity in continuous use. Safe for all aquarium creatures. Densely pored filters are required for the bacteria to reproduce. Filters should work constantly and water circulation should be enough.