Hello all, my ABF is having a problem and I am hoping maybe someone here has seen or heard of this issue. I have a 3-4 inch African Butterfly Fish in my 55 gallon. community tank, and over the course of the last month he has slowly been rolling over onto his right side. I was out of town last week, and my wife called and said that she thought he was dead, because he was completely sideways. She reached in and touched him (he will always let you pet him, seems to actually enjoy it) and he started swimming. I instantly started to look up info on potential problems, but found nothing that specifically pertains to the ABF. Is it possible he's constipated? We've had him for 6 months and I have never seen him poop, although he's not typically active during the day. I feed him blood worms and NLS Thera +A and he eats well. I do fast all of my fish 1 day a week, and do at least 50% water changes weekly. At 1 point, this tank had African Cichlids in it, and nitrates got ahead of me, but I moved the cichlids to a 125 gallon and I have been slowly lowering the ph and have been able to significantly reduce nitrates. I am due to test today, and will post results when I do. One other possible problem. I live in Western Pennsylvania, and 3 or 4 years ago we had a massive influx of stink bugs. They've been here every year since. If you kill them, they give off an extremely pungent odor, which in turn attracts more stink bugs. Well, 1 morning I got up and went to check the tanks as I always do, and found a dead stink bug in that tank. I was glad that my ABF didn't eat it, and of course I removed it and it was water change day anyway so I did the normal routine. I am thinking that right after that is when I noticed him leaning right slightly, but I didn't connect the dots until right now. Anyway, that's my story, any insight would be greatly appreciated. I know that I have a lot to learn, so any thoughts at all would be helpful. Thank you.