Fishsupply was out of Derasa Clam, they substituted a blue Tridacna maxima instead. Tank is 31" deep with 2x250mh and 2x54 T-5 ATI Super Blue(which I guess have not affect on the placement of this clam)
I know this is one of the more light demanding of clams, should I place it about 1/2 way up on some
LR, somebody told me that it may move around and fall off my
LR?