[Fishfirst]

like i said... I was throwing out IDEAS... not opinions or advice. There is a big difference, and he is the one to judge wether an urchin is right for his tank or not. In a preditor tank its hard to find inverts that do a good job at cleaning up. Its his decision if an urchin eating algae off his rocks is a bad thing or a good thing, and like the old salt said, its not set in stone that an urchin will eat down to the white of a rock. I myself am going to look for one that doesn't... I do, however, want one in my tank, for my kauldern cardinal pair, so I have a chance to save the fry from my wrasse and other fish.