well, you could say it's a bit of an "eye-sore", but it's relly much more of a "head-sore". How did this happen when you keep a BARE-BOTTOM tank? I thought that was supposedly the cleanest way to keep fish? Makes no sensejeez,....uhm, I wouldn't even wait for a diagnosis....I would just go to the LFS and buy something that was general broad spectrum or at least start adding salt or something...... you just freaked me out.