The problem i am having is that one of my fish has a spot on his fin but it is not ich. It looks like an air bubble or a burn .My water conditions are excellent so what could it be
How big is the spot, and what color is it? Has it just appeared, or is it developing, getting bigger? Is like a raw wound or like something [parasite] attached?
What are your water readings and how long have you had this fish?
