One of my boys has been a bit tail-heavy pretty much since I got him. He tends to swim at a 45 degree angle... not always, but usually. And when he's feeding he's almost vertical. What's it mean? Is this SB? He's getting frozen bloodworms and pellets to eat. He will be starved for two days this weekend whether I like it or not - I don't really want to transfer him anymore in a little cup, he tends not to do so well with it. And I won't be here. So I guess I'll see if he perks up after the starving.