Still no luck here! The problem with draining is that it would basically require me to empty the whole tank and I am not sure I am willing do do that. I tried draining ~80 gal and he still had plenty of water to swim away from me in. I also can not adjust the pvc plumbing in the backX Further! I gave up after at least an hour of trying to get him and went to check on him just now and he got sucked down into my sump. Still alive, but now I dont know how to get him from here.... I cant pull the pvc pipes out due to clearance btwn them and the tank.