I just picked up a maxima clam from liveaquaria. they keep their clams under 400W 20K halides. I have 2 150W 14K halides with 4 39W T5 actinics. It was shipped over night. I placed the clam half way up in the tank. Should I take him down to the sand in the beginning then rise him up? or should I just leave him where he is? he is fully open and responds to light. Just the colors are all dull.