maybe it's the lack of big fish in my reef, but mine usually like to hang out at least 6 - 8" into the water column, sometimes even taking pellets from the surface (16" above the top of the substrate). Although they are fond of just sticking their heads out of their burrows and looking at everything though.
My favorite behavior of theirs is watching them cover up their burrows for the night and open up again in the morning.
|