Quote:
Originally Posted by Aquattro
Unless I have a crab living in a coral and doing damage, I almost never remove them. Unless they're big, or you have really small fish, they're all mostly fine. My rule is unless they do something bad, they get to stay.
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I have been reefing for for 20 years and have never seen a crab attack a coral or fish.
They might I guess if you do not feed them. Drop a pellet in their direction from time to time.
I agree they are completely fine in your tank.