The real trick with these animals that take months to starve, is to see them after a year. If, after a year in that condition, it is plump and you still see pods, then I would agree that it would work in that 29 set up. But, IMO, this is a marginal system nonetheless. The addition of some other fish might blow it. Definitely needs the rock and fuge...yup, might get by, IMO. It is POSSIBLE, but only under pretty specific circumstances. I think, RUBBERDUCK, you clarified your answer with the "big" IF
that hopefully people will pay attention to. I agree that it MIGHT be possible in that situation, but it is not a typical situation and many people don't have the patience to do it. So as a quick answer for the majority of 29g reef tanks, I would say no.