hey guys, I go through this with my BTA's every so often. most of the time, they turn around and become normal after a few weeks (3-4 weeks). I'm just wondering why they do this? I didn't do anything new and the funny thing is they started doing this after a week I did my water change. before that, I haven't done a water change for 6-8 weeks and they were looking really good. I thought they would appreciate the water change. LoL. I do 3 small (~10%) water change consecutively. I'm about to do another water change this week to see if it helps. a few look like this and most look normal.



