It seems to be feeding ok on the bloodworms. Tonight is had about 4 that I've seen and probably had a few more besides. I've taken to hiding food in craters and holes in the rocks. At the moment this is a bit difficult, but I'm going to use a turkey baster and inject food directly into the nooks and crannys. Doing this with frozen bloodworm all the time is going to work out expensive, so I'm going to try the same with the freeze dried stuff but, will let it rehydrate first, then inject it.
Will let you know how that goes.