Anyone here have experience with it? I have 10+ years of fish keeping and have never had this problem. From my research on this it looks like that what my fish/tank has which isn't good. I ordered the treatment kanaplex and API furun 2 but it won't come until Monday and Thursday. I'm worried about my fish, they seem fine but I lost 3 dwarf neon rainbowfish a while back and they had the symptoms of this but I didn't connect the dots until the other day.