Check the listing for details. 500 ML OCEAN FREE AROWANA BENEFICIAL BACTERIA 9000. Condition: New. Listed at 22.00 USD. This innovative product by Ocean Free (a breeder of Asian arowanas) has the highest concentration of stable purified liquid bacterial spores and excellent extra cellular enzyme production. Using special technology that preserves the bacteria in liquid form, the bacteria will only be activated on release into water thus guaranteeing a long shelf life. With a high bacterial count of 7.4 billion per ml, it is non-pathogenic but anaerobic and aerobic to the growth of the arowana. Special Arowana Beneficial Bacteria 9000 is not only suitable for all arowana types but also for "monster fish" which often shares the same tank such as Siamese tigers, freshwater stingrays, bichirs, big catfish, giant gouramis, and giant cichlids!! This product also: . denitrifies harmful ammonia . breaks down large complex organic compound (sludge) . controls odors while reducing the effects of fish waste and uneaten food . rapidly matures and regenerates filter systems . 500 ml bottle treats 12500 liters or approximately 3500 gallons. OCEAN FREE IS A BRAND THAT SPECIALIZES IN AROWANA PRODUCTS SINCE THEY ARE ONE OF THE BIGGEST BREEDERS AND EXPORTERS OF THE PRIZED ASIAN AROWANA!!! <img src="https://ti2.auctiva.com/web/aswCredit.gif" border="0"><br><a href="https://pages.ebay.com/seller-center/listing/listing-advanced-sellers/third-party-listing-tools.html#auctiva" target="_blank"><img src="https://ti2.auctiva.com/images/sc1line1.gif" border="0"></a> Track Page Views With Auctiva's FREE Counter