I have a 20g that is my grow out tank, all fish are healthy and fine so far. Wento to an auction Sat and well I picked up a four Mpanga Trewavasea females from a breeder, they were smaller then my adults so I added them to the grow out tank. Well three of them are looking good and acting normal. One of the four I thought was a goner for sure. All she did yesterday was swim in circles and shimmy all day, I thought to myself, no please don't be sick, but I figured it was too soon to know for sure. Today she seems to have stopped the circles and shimmying but today I noticed her belly is a bit bloated, other then that she looks fine but seems kinda out of it and doesn't eat, not like the others they eat and even quarrel with each other. So I am almost convinced she has picked up bloat in the move, could she of developed it that fast or is it too soon to now for sure? Also what do I need to do at this point? Is it possible that she is the sole carrier of it or is it throughout the tank already even though she most likely just got it? Will I be able to remove her from the tank and prevent the rest from getting it or is it like ick and I am in need of buying some meds and doping them all up? Losing the other fish in the tank is not an option, I know I should of quarantined them, easier said then done with lack of room, lesson learned. Thanks I appreciate your time.