Does anyone know of smaller moderate care tridacna clams? Also, where could I get some in or near Austin? I have 1 blue damsel, 1 fire fish, 1 pistol/goby pair, 1cleaner shrimp, 1 green clown goby, 1 blue tuxedo urchin, and 2 cardinals. I am willing to remove my snail, sand snail, or hermit crab. Any advice appreciated!