A question for Sexy Shrimp owners

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My Sexys (2) moved immediately into my green carpet anemone. They never stray far from it and seem be happy little scavengers. I've not ever seen them do any damage to anything. In fact, I often wonder where they find food, but they seem to get by.

One is clearly female and fills up with eggs periodically. These are released into the water (much to joy of the fish). Nothing has ever come of this effort for the shrimp.