Tried it already.
I've tried what feels like nearly everything .. except wait the 3 months part I guess.
I can't tell if he's emaciated yet. He never comes out of the rock. Never. The only reason I know he's not dead is I occasionally see a face poke out for a second or so, then darts back in, not to be seen for half an hour to an hour.
There is not the slightest hint of interest in food. I mean it's one thing if the food is the wrong size, but you'd think the smell would at least entice some kind of response before bailing on the idea of eating. It's like there's no sense of smell or something.
One sort of funny thing, he's picked a hole right next to some sun polyps, he's the same colour. It looks like a new sun polyp but with blue eyes. I'd take a picture but .. yeah, I'd have to have the camera out and ready for the 3 or so seconds that the head pokes out in between the hour or two of waiting.