Hey Everybody! i have been toying with the idea of this for a few weeks, but want to see what kind of other tanks yall have. I really want to set up an urchin showcase tank. I personally love longspine sea urchins, Diadema setosum, and want to set something up for them. If you were going to scape a tank just for urchins, how would you do it? looking forward to your replies.