He passed on yesterday. I have no idea what went wrong with him. I have been doing weekly water changes, he was acting fine the day before. I came home yesterday to find him laying dead at the bottom of his tank. But he looked different, he had dark red spots at the bottom of his gills and and had the same color of red washed down his head.
I hope he is enjoying the warm, tranquil waters in fishy heaven, eating his favorite food, blood worms. I hope he is happy.