The injection of Ozone into marine aquarium water can improve the efficiency of protein skimming and raise the ORP (redox potential). The decomposition of toxic nitrite is enhanced whilst bacteria in the water decreases, minimising the risk of illness of the animals. The compounds that produce yellow colouring in the water are broken down and the water stays crystal clear. The ozone generators in the Ozone series utilise the latest low voltage technology for safety and reliability. Ozone 250 suits aquariums up to 1,500L and offers adjustable ozone output in 10 steps between 10% to 100% for a maximum output of up to 250 mg/h (in dry air).