Hi, so yesterday the ghost shrimp I had I my bettas tank passed. He had slowly been going downhill over a week, and he would swim, then stop and sort of crash down to the ground where he would stay for about an hour. I immediately knew something was wrong. He passed later yesterday, and I took the dead shrimp out. But now my betta acts kind of weirdly now. Yesterday I caught him with only his fins on the intake part of the filter! It was just his fins, and I opened the flap on the lid to get him off, and he kinda stared at it for a while, then moved off of it. His fins aren’t damaged now, nothing is damaged, but I don’t get why he did it. He hangs out a lot more on his betta leaf also. Is he depressed because of the shrimps death? I never saw them interacting before.... Tank Parameters - Ammonia: 0 Nitrite: 0 Nitrate: About 10 (So yes, it’s cycled.) It’s a 3.5 gallon tank, by the way. But I am going to move him into a planted ten gallon soon. Any suggestions/answers are appreciated.