I have a 40 gallon tank with a Jack Dempsey and a Common Pleco. So a few weeks ago in the middle of the night I heard a loud noise that woke me up and at first I thought the tank had broke but after quick realization that my Cichlid was missing I looked behind the tank and he was gasping for air. I quickly got him back in the tank and he was able to swim away fine and continue like normal. Fast forward a couple weeks I started noticing he wasn’t eating as much and the pleco was continuously chasing him around,( they’ve been tank mates for almost three years) now it’s continually fighting. Last night however I kept hearing the cichlid bumping into the walls and trying to jump the tank. Mind you I’ve checked the water levels and heat and all the necessary environmental conditions yet the cichlid still had been acting sporadically ex.. swimming upside down, bumping the walls at full speed. One of his eyes is starting to bulge. My thought is that he had some kind of injury from that tank escape a few weeks ago and it’s starting to affect him cognitively? I’m not sure could really use some feedback or input!