I noticed my clown was swimming oddly and checking his side fins (where they have a black pattern line around) i noticed it was missing looked broken or chewed. I did a water test last night and it was at 5.0, today i ran the test again and it is still at 5.0. Any ideas what caused this to happen, Is it cus i never clean my LR in over 6 months i was told to never clean LR. I also want to know how can the fins be repaired. Thanks.