Okay I get home tonight and start working on my computer. I look next to where Buster is and he is sort of laying on the floor of the tank...WEIRD...he never stops moving. Then I see him bend into half. He keeps bending and arching himself. His tail is destroyed...he was biting it and wouldn't stop until I tapped the tank. He is low facing down on the bottom of the tank with his body arched. He is swimming but looks not as smooth. HIs tail looks yellow where he bit it. I am including some pics taken just now but I don't know if he is going to make it through the night. Looks awful! Please give me advice if you have any...my son will freak if Buster dies. He just looks bizarre, in color, tail, swimming, and doing this bend.
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