Utility Clams

[CAPT_Dave]

Does anyone know of a species of clam or oyster or other filter feeder that lives in tropical waters that would thrive in a mud based refugium? I just think it would be interesting to have something like that as part of my CUC in the sump/fuge. Non-photosynthetic and inexpensive are prerequisites.

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[ThRoewer]

There are the green mussel that would mostly fit your requirements.

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[Michael Hoaster]

Live Brine Shrimp dot com sells what they call cleaner clams. These might work for you. Gulf Specimen Marine Lab sells several different bivalves, but I think they require a $70 minimum order.