I can't tell if he's asleep or if he's dying! Twice today I've seen him drifted up against the filter and doesn't respond to me gently touching him for a little bit, then he'll jerk suddenly and be ok again. He still has a huge appetite, I've unplugged the filter, its a low strength tetra whisper. I've only had my axie for 2 weeks please, if you have any advice please let me know, the tank chemical readings are normal, but ammonia is .25<x<.5 doing a large water change now. Please help!