I recently brought home 5 new fish and put them in a 100 gallon tank, after watching them for 3 days in a 55 gallon to be sure they looked ok. after a week or so the new fish started dying one by one. now the fish i have had for 2 years or so is just putting food in mouth and spitting out. this is what all the fish did before they kicked. doesnt look like bloat but i dont know. i really have not had many problems and been keeping fish for long time. i really could use some help this is very difficult to watch my little buddys perish