Bactoreef® combines everything your reef and saltwater aquarium needs in terms of bacteria. It cleans and recycles impurities, and digests waste matter by bio-digestion. If used continuously, it also serves to balance your NO₂, NO₃ and PO₄ levels. Bactoreef® comprises live, diversified aerobic and anaerobic bacteria together with nitrifying and denitrifying enzymes and micro-organisms. Very economical: 1ml per 100 litres of water ! Guaranteed effects when used in conjunction with Microfauna Booster®.