*What is NitrateJ*Nitrite is oxidised into Nitrate (chemical symbol NO3) by nitrobacter filtration bacteria. Excessive levels of nitrate in an aquarium are responsible for poor fish colouration lethargy a failure to breed and excessive algae growth. In seawater high nitrates are also responsible for stunted coral growth. The table below is a rough guide to tolerable nitrate readings.Ideal Perameters:Seawater: 0 - 20ppmFreshwater: 0 - 50ppm
