So I was given one these and right now it's in a 20 gallon with live sand and rock only. It's a species only tank so no worries there, Ive never owned one so I did the logical thing which is research....there's not much out there on these guys. I'm sure they're Not reef safe. So any pointers, tips or even personal encounters will help. He's..and I say he because his claws are more straight than round...but he's about 3 to 4inches.

