Well I went to Pet Shop number 1 and got told it was bacterial and I needed Furan - 2 , which wasnt in stock. So I went to pet shop number 2 and was told the symptoms seemed like worms but as I now had another sick fish that was bacterial, I ended up needing Furan-2, Worming Med and Melafix to treat both tanks. At great expense to the management I might add. I should be thankful I didnt need to go to Pet Shop number 3.