Now that my tank is fully cycled I am beginning to put together a cleaner crew. I currently have 3 turbo snails and two hermit crabs in my display tank. I want to get a couple of emerald crabs soon and was wondering what else I should include. My display tank is a 58 gallons with 40 lbs of live sand and 75 lbs of live rock. In the sump I have 20 lbs of live sand and 40 lbs of live rock. One more thing has anyone ever put any crabs or snails in there sump?