I have a 28 gallon tank in my office, lit by 2x55w pc's. I'd love to try a small clam in the tank (current occupants: ocellaris clown, juvenile hippo tang, juvenile snowflake eel, a few emerald crabs, 2 cukes, and 3 serpent stars along with several snails and hermits). Currently I'm just growing some mushrooms and star polyps. Is there a species of clam that will do well under this lighting? Thanks for all your advice.