Thyleran
Aquarium Advice Newbie
Hey, all. I recently got a lot of three lampeye tetra on Monday. They were all fine, except for one smaller one which had a torn gill. I put them in with my serpae tetra, who was a bit aggressive at first, but they began to get a long soon afterwards. I thought all was fine until this morning when I realized the hurt lampeye's eye was missing. He still has one, and he's in a three-gallon aquarium with rocky substrate, a 7.5 watt flat heater, and a large fake plant. What should I do? I don't want to euthanize him but I'm not sure how to help him.