Lettuce Sea Slug (Elysia crispata)
The lettuce sea slug is a ruffled, solar-powered sea slug that eats Bryopsis algae. Here is how to keep Elysia crispata alive and fed.
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Slate Pencil Urchin (Eucidaris tribuloides)
The slate pencil urchin has thick, blunt spines and a big appetite for algae. It is not fully reef safe. Here is how to keep Eucidaris tribuloides.
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