Are Emerald crabs bad?

[Drock169]

if they get hungry enough they may eat some polyps but they are mostly reef safe

[Kryten]

They are very bad, you should give it to me

[fishmaster]

mine eats more coraline than undesirable algae.

[dsaundry]

Crabs are crabs,,they should all have an early encounter with a Mantis.

[Melonbob]

My emerald did kill a snail when we first got him.......I'm not quite sure why but he hasn't touched another one since. Funny thing with him is I won't see him for a week, sometimes two and just when I figured he off and died, he shows up just to make me happy!

[andresont]

I paid $9 each at J&L and will buy more.