i have had a Pseudotropheus demasoni for three weeks now. it is 1 1/2'' the tank is 55 gallons there are 4 cichlids in all.water was checked today. everything was fine.all the fish are the same size.for the last 6 days it has been bloated and at the bottom of the tank without moving much at all hasnt eaten in as many days.i have done two treatments with clout. the tank has been running just over a month. 2 weeks with no fish and then added 4 slowly.sometimes the fish actually lays on its side.the other fish show no sign of a problem YET!. today (day 6) when i feed the others the fish tried very hard to swim and eat but that lasted about 20 seconds then the fish sank to the bottom slamming into the gravel! i dont even think it got any food. i only feed them a littli in morning and a little at night. thanks for any help ill try to get a pic up soon!