filter feeding crab?

[canuckzilla]

Tony got it right with 'Asterina'. Clearly I'm going to try a little harder to stump everyone.

There was some back and forth on some sites on whether Asterina will eat coraline algae. I watched one in my tank on a couple of different occassions eat everything to the bone on my LR over the course of an afternoon.

Anyone every had a problem with large populations of Asterina that aquired a taste for coraline algae?

Once again...thanks
- Gary