What eats Coraline algae other than urchins?

[shrimpchips]

Originally Posted by globaldesigns

I just looked up what a chiton was. Wow! they look like trilobites. Anybody ever used these? If so, where can one get some?

I have tons of them in my tank, but they only seem to eat the coralline off the glass. They stay small (I've not seen one bigger than 6mm) and are pink, purple or white.

If you want I can send you some - although it's a long trip for some hitch hikers