I rescued 2 plecos from destination toilet bowl a couple of years ago from a neighbour who was moving and didn’t want to be bothered with them anymore. I admit I haven’t been the best host to them, but I really don’t know a lot about aquariums and didn’t realize what I was undertaking. For the most part, despite some cloudy water sometimes etc, they have really flourished with greedy little appetites ( I feed them little algae wafers that they readily gobble up), poop that would rival sharks (just kidding, but they *do* poop a *lot), and grown. They are now approx 5 inches each and only like in a 5 galloon aqauarium. I realize this is a little too small for them, but am waiting for some cages to be built for my Bearded Dragons when I will move them into one of their old tanks. Ok, so enough about the background (I *think*…). Recently, one of them has all but stopped eating, if and when she does eat, it is only like a little “sip” – certainly not the adorable little piggy that I had grown to love! I really don’t know about these little guys, so please excuse any seeming-ignorant descriptions. But she seems to have a loose lower lip - its just kinda hanging there and often times seems to slide out of place when she is on the glass – it almost looks like a lip of novacaine when on the side of the glass. However, she is also not even on the glass as much these days. She also rarely sits right on the bottom of the tank like the other does the way she used to, now she just kinda floats just above the bottom of the tank – sometimes with one part of her body floating higher or almost like she is half sitting up sometimes– and she seems much much more influenced by normal ripples in the water – almost like she has lost muscle tone or something – I don’t know. But she doesn’t seem as stable and seems to have to move around some just to keep from floating around if that makes any sense. She *may* be a *little* bloated, but I'm not really sure as I don’t know if that is in my mind or if she was smaller before. I tried doing water changes and still no improvement. Do you have any idea what is wrong with her or if there is anything I can do other than try to keep her comfortable? I also noticed that the one was bullying her a little bit the other day – but I have never seen that before. I know you all will understand when I say that I have really grown fond of them and would feel horribly bad if she died at my hands! Please help!