jesso435

Thank you!

OP did you ever figure out what this is and what to do about it (if anything)? I have it all over my tank, too. Looks exactly like yours.

pH: 8 Nitrates: 20ppm Water Temperature: 78 I didn't include nitrite and ammonia, because they are in flux. Last reading wasn't great - .25ppm ammonia and 1.0 nitrite. I'm trying to cycle this tank, and this betta has been through a lot because I got him from PetSmart and didn't know what I was doing when I got him. Anyway, this white bit started out as a little dot and has spread to a stripe in the past few months. It hasn't gotten bigger in the past few weeks, and he doesn't seem bothered by it. It's not fuzzy, but it is a bit raised. LFS owner thought it could be a fungus and suggested sulfaplex since it probably wouldn't hurt my BB since I was still trying to establish my cycle. Anyway, been having trouble getting that tank cycled, so she said to hold off on meds until that was established. I've since upgraded him from 5.5 gallon to a 10, which is still yet to cycle. Long story short, he hasn't had meds in a while, and I'm worried it's getting worse. Any thoughts much appreciated.