Tridacnid Clams/ snails/worms/stars and such
What types of snails and cleanup critters (eg, hermits) are best/safest for a live rock, live sand, fish and soft corals (polyps, mushrooms, leathers) tank? There are also some cleaner shrimp in the tank, as well as a mandarin fish.
And are there any particular types of snails or critters to...