Great, thanks for the good info, I just saved about $100. I have 100 snail 75 blue leg hermit crabs 2 emerald crabs, 2 sea cucumbers, a lettuce nudibranch, a copper banded butterfly fish and a skunk cleaner shrimp acclimating right now. I know I need some sand sifters in there, but I'm not real sure what else I'll NEED to have a real good quality for my tank water. Are the UV
sterilizers worth the money?