I just checked my parameters again. Ammonia is at 0 PPM. Everything else is low enough to not be a concern. PH is at 8.0, we have well water. I have 6 large aerators running. I would like to thank everyone that chipped in for their help. I'll keep updating you guys as time goes on. I've also been trying something. I put a thawed minnow where he usually frequents, then I turn the lights off and wait 30 minutes. After turning the lights back on, I come back and usually the minnow is gone. It may be the sturgeon, but the sturgeon have really small mouthes and I don't think they could eat such a large minnow. Usually they can't even eat half a minnow. At about 8 PM yesterday I put a small piece of worm in to feed my brook trout. If you guys ever can keep a brook trout, they are amazing fish. After I dropped it in, the catfish swooped in and ate it. It made me super excited! So now I can tell you guys that he is eating, just not as much as he would in warm water.
Like I said, I will keep posting updates as time goes on. So you guys will know if anything happens.