Nitrites: Nitrites’ll Kill Some Fish, There’s a Test

Where do Nitrites Come From? Ammonia is reduced by a bacteria called “Nitrosomonas” into Nitrite. These Nitrites are toxic at very low levels. People often test 0.25 (a quarter) part-per-million of Nitrite and disregard it as a problem. “Oh, that’s not enough Nitrite to matter!” they say. Perhaps they are fools. Their fishes’ health problems … Read more