Hi I'm new to this but I need help with one of my chichlids I have a 40 gallon with 2 kenyi 1 electric blue 1 peacock and 1 maingiano my blue and black striped kenyi is acting like his swim bladder is messed up but it's like it comes and goes every few days I turned there light on this morning and he couldn't barely swim away to hide like they normally do at first and it's stripes disappeared and then came back? Idk what to do