you will need metal halide lighting for the clam and anenome and your tank needs to be running for at least 6 months before you add either of them. the fish list is a little big and the tank is on the small side for any tang. the diamond goby will starve in a few months unless you can get it to eat food instead of sift the sand.
i would reevaluate the list a little.
i would reevaluate the list a little.