I have an angelfish and its fins are like deteriorating, slow disappearing its not from the other fish because I can see the lines that used to be surrounded by fin. Please help I don't want my fish to die!
I dont know the levels i will check today. its a 33 gallon tank and it is cycled. Have have day this tank for several years, and this angel for a long time. In the tank I have other angels, odessa barb cherry barbs, shadow tetras, hatchet fish etc.
There are medications you can get for fin-rot at your aquarium store. I've not had it myself, so don't know the names of specific products.
But the testing for ammonia, nitrite and nitrate may lead you to the cause so that it can be eliminated. That way the sick fish can stay cured and the others won't get it too. Most fin-rot problems are caused by water parameters out of whack.