My green wrasse(halichoerus chloropterus) eats my brittle stars and bristle worms.You might not like how it is constantly rummaging in the sand looking for critters which causes sand to fall on the corals .If you have clams it is likely to knock them over while it is looking for live food.It needs a sand bed to sleep in...when he goes to bed...he might also cause sand to drop on your corals.Otherwise he is a good guy..a big eater....and grows to 7-8 inches.
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