I have a small 20 AIO and i have a lot of live rock in it. I have decided to make it a coral only tank, no fish, and was wondering if any one had any "easy" ways of catching fish to relocate to a new tank. The issue is they have a lot of caves to hide in and as soon as the net hits the water they vanish. Removing the rocks is not an option at this time either. Is there any tricks of the trade i could use to get them out. I have 2 clowns a small 6 line wrasse and a royal gramma. I realize this may be a silly question but i don't want to stress the fish anymore than is necessary. Thanks