Okay so after battling this mess for months I finally broke down and bought a small copperband butterfly against my better judgement. I know their dismal prognosis but I was just about ready to give up. Well, much to my dismay this little guy will only eat mysis. Won't touch the aptaisia what so ever. I did see him nibbling away at some gel food I stuck in a rock crevice, but so far only he only cruises around nibbling and picking at the rock and gobbling up mysis when it hits the water. Won't touch pellets or flake. I may have to take the nudibranch route with the aptaisia if I can't get him to eat it. Any thoughts?