i have a chiwindi peacock in a 100g tank with other male malawi cichlids,it was active and very colorful,but i since have added a ngara flametail male that is the same size if not a bit bigger.i have noticed the chiwini neon sitting at the bottom in the back of the tank.has lost some color and stopped eating.i had this happen to another one of my peacocks before i added the ngara so i don't think its the ngara. unless something else in the tank became dominant and stressed out the other fish as well,i put him in a med tank but it died a week later,it didn't bloat up or look sickly.so im wondering if its the stress of the tank and if i move the chiwindi to a 55g calm tank where he would be by far the biggest fish in there would it help him get better.