I awoke this morning to one of my 3 oscars having some peeling around his head. I thought he may have had an altercation and got the worst of it... however upon closer inspection of the water there are little brownish gray white little worms or something swimming in the tank. Whatever they are the live ones are thrashing around pretty violently, but i don't see any on the fish. i still think they might be the culprit. there is also a strange brown stringy algae like substance on some of the rocks... This is a definite curveball for me i don't really know what to do. I don't know if antibiotics work on eukaryotes without hurting my fish(if that is what these are??) someone who knows more than I would be greatly appreciated. i keep my temp around 76-78 and I keep my salt concentration on the lighter side of 1 tablespoon per 5 gallons. Please help!!!
