I just used the best method ever to catch my einstein of a fish purple tang. It was suggested to be by Kevin Pockell and works awesome! Just get a tiny tiny hook with some 4lb test fishing line. Attach some nori to it and go fishing. It worked awesome because i could pull it away from the other fish in time and let him take it. You have to be care so he doesn't swallow it but i got him right in the lip. He got his revenge too by sticking me in the thumb when I was getting the hook out. Oh yeah, make sure you bend the barb on the hook over or use a barb-less hook so you dont hurt the fish! But if fish traps arent working and you don't want to reaquascape for the 8th time, there you go. I know it seems cruel and mean but really it was quick and didn't stress the fish out for an hour trying to catch him with a net! Start to finish was only about 15 seconds after hooking him.