Hey GreenPuffers, go for it with the coco worm. I have had one for over a year and it survived a pretty bruttle move and has been very healthy and quite the display in my tank. In the 180 tank before the move I kept in on the bottom with three 250 MH lamps and two actinic. In it's new (temporary ) home it is on the top of the rocks under a 250 MH and has been doing very well.
So much for the good news. I got a spiny (?) crab and I think it started to pick on my coco so Mr. crab went directly to the fuge. Then I moved the coco to the bottom while doing some routine assassination of aptasia and I THINK my redtail shrimp started to pick on it and now it won't come out. I hope I didn't let the dang shrimp kill it.
So anyway, back to my first line, go for it, they are an incredible creature and really put on a show when you spot feed it.