My oscar uas been happy and healthy except for a bit of pickiness with uis feeding. He seems lively and not sick at all but this morning when i went to feed the tank found him with a pink piece of something sticking out of his vent. It could simply be waste but i cant be sure. I cant find my camera right now to post but if anyone knows of such an ailment and it is possible for you to post a photo so i can compare i would really appreciate it. Any other help would he appreciated as well.