gonapora, put it in medium lighting and try to find a location that see's lot of detritus pass it by (so something like an opening from with in your rockwork that gets good water passing from in to out or opposite) they can be a bit tough to keep as their food source has not been found but detritus and the bacteria that is associated with it is your best bet.
good luck they can be a very nice looking coral.
Mojo