So Roja has clamped fins. I tested her water,ammonia is low. no nitrites or nitrates. She has no filter either though. I did however test her pH. I changed her water,a few days ago and tested it. Then it was 6.8 with kh of 20. I just did it now,its 8.0 and kh of 40. Thats a big jump in pH. So I am thinking thats why she has clamped fins? I just did a 50% on her. The tap is staying at 7.2 despite all the rain lately. kh of tap is always low. I bought Nutrafin kh booster,see if that helps any. Im keeping a close eye on her,dont want to lose another one.