JBL Denitrol Aquarium Starter/Booster contains a concentrated solution of live beneficial filter bacteria to reduce ammonia and nitrite within an aquarium. Using highly efficient autotrophic bacteria strains JBL Denitrol allows for the immediate stocking of an aquarium. The use of a filter starter/booster is highly recommend when setting up a new aquarium as it is no use simply waiting for a healthy bacterial population to grow, as hardly any beneficial bacteria will develop in a new tank without water pollution. Bacteria only react and reproduce when they have a lot of food (NH4, NO2). Advantages of JBL Denitrol Bacteria Starter/Booster Live autotrophic bacteria, breakdown ammonium/ammonia and nitrite Enzymes & bacterial strains actively breakdown fish excrement and other waste Autotrophic bacterial strains are faster and more efficient in breaking down waste 8 Complementary bacteria cultures break down protein, ammonium and nitrite Gradually start stocking fish in newly set-up aquariums immediately Nature at Home Fish need to be as comfortable in the aquarium as they are in nature. When setting up an aquarium and during partial water changes the aquarium needs sufficient bacteria to be biologically cleaned and to quickly break down harmful substances. Bacterial starters contain highly active beneficial bacteria which break down the ammonium/ammonia and nitrite as well as the fish excrement and other waste in the aquarium water. Opinions vary as to whether fish can be added as early as one day after the aquarium set-up. Microbiologists have observed that bacteria reproduce very slowly in a new aquarium when there is no water pollution (nutrition for bacteria). But if you add fish the next day without using a bacterial starter, problems with ammonium/ammonia can occur, because the bacteria reproduce too slowly to keep pace with the production of pollutants. When using JBL Denitrol, higher quantities of bacteria are present. The next day, after the first fish have been added, there is food for the bacteria and they start to reproduce. This will make sure that there are always enough bacteria, so that neither ammonium/ammonia nor nitrite can become a problem. Dosage: Use: 10ml for 20L of water during the initial setup and with disease, 10ml for 300L of water during water changes. Aquarium Starter/Booster Adds millions of beneficial, autotrophic bacteria to the aquarium water Contains live bacteria cultures with enzymes for rapid pollutant degradation Makes immediate fish stocking possible Easy & simple to use Suitable for use in fresh, brackish & marine aquarium set-ups Bacteria activated through water contact Highly recommended after using medications or after a complete water change 10ml Treats 20L - New tank set-ups