Corraline eaters??

[Ceak]

I'm about to start my very first tank and plan to go with a faux sand bed... I don't really like the BB look though, where the bottom is covered in spalshes of coralline and such so I am wondering if there are any critters that eat alot of this stuff?

thanks

 

[bkwudzjeep]

My urchins went to town on my coraline, but they also bulldozed anything that was not attached.

 

[Ceak]

what kind of urchins do you have?

Does anything else eat coraline? Crabs, fish, snails?