My blue legged hemits wander all over my zoo colonies scavaging for bits that are caught in between the polyps. The zoos close up but open up fine afterwards. I have at least 25-30 Blue legged hermits in my 90Gal and thriving zoo colonies. 
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Gerald
Home:160Gal. Foxface, Yellow Tang, Blue Tang, Coral Beauty, Lawnmower Blenny, Starwberry Dottyback, Mandarin Goby, 2 Percula Clowns, Green Brittle Star, Brown Brittle Star, Chocolate Chip Star, Cleaner Shrimp
Store: 33Gal. Green Brittle Star, Chocolate Chip Star, Peppermint Shrimp
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