whenever my orange linka goes somewhere I don't want him I knock him down with a net or water propulsion from my baister. this is also a good way to see if he's alive, since he will attempt to straiten himself out. i know this sounds a little barbaric, but it's better than just staring wondering what going on . my linka will sometimes "sleep" in a spot and not move for a long time, days......but for sure the first few weeks i initially put him in the tank he didn't really move, now he's all over the place. if you could get a closer shot of the body i'm sure someone on here can assess his condition.