I just came home to find Rufus jumping out of the water, smacking against the lid, falling back into the water and then doing it again. He keeps doing this repeatedly. I went to take him out, second the lid was up he flew out of the tank and landed on the ground. I managed to pick him up as he jumped around and put him into a jar, he was trying to jump out of the clean jar. I cleaned his tank out, put fresh, dechlorinated water in, put him back in and he's still doing it! He's been doing it for thirty minutes now, he doesn't even look tired. What the ---- is wrong with him?