Ok great i was under the impression from a few users that it was somewhat untreatable. I am treating them with Melafix and i have made 2 water changes this week each 25 gallons. This is way off topic i have a fish now a feeder that was bit by the oscars two days ago he lost his tail and half his body but is still kicking just swimming as if nothing happend. I dont know its kinda cruel but hes been eating and swimming like the others.