2 days ago I noticed one of my Red Eyed Tetras was starting to bloat up, its right side as bulging out. I have read about constipated neons exploding here, so out of fear I did not feed the fish for 2 days, well the good news is today when I looked for the bloated fish I could not identify which one was bloated, and yes the count of the fish was the same as the day before, but the fish was very bloated last night more then the day before. So my question is, what as wrong, was the fish indeed constipated? Could there have been something else wrong, if so what? If it was constipation, how can I prevent it from happening again. I have been trying to feed my fish vegetables, but they will not eat what I have tried so far, I tried canned peas, fresh peas, fresh cucumbers. What else can I try?