hops523 & susieq..I too am from upstate NY, born and raised, moved down south in the late 80's. Kingston NY. Any way, move your powerhead..if he tries to move and gets sucked up in it, he could get injured. Mine did, but luckily I was there and pulled him out, he suffered only a couple of bent tenticals. But they are perment injuries, cause the tips on them did fall off, about two and now he is a little stubby looking, but fine other wise, I was worried about bacterial infection. As far as splitting they do this when conditions are right, I don't think you can get them to split. I would worry about getting him healthy, and not moving around so much, It's bad when they do not take up perment residence..it means they are not happy where they are. Good luck keep us posted.