I agree, six line wrass is a number one suicider.I got one from a member here, he moved, so he gave it to me for free. I put him in the tank, few weeks later, i never saw him again. I thought he died in the tank. Few month later when i cleaned up the tank, and mop the floor. He found him laying dry on the floor-death. Now i know this dude committted suicide. I never want a six line wrasse again, unless i cover the tank. Most of the brittleworms hiding deep inside the rock, it is hard to get rid of them. I got a very big one when i rearranged the rock, then this guy came out from the rock, i just pulled him out and tossed him in the trash can. Most people like to have them, but to me, they look scary.