ID Please, Getting Bigger by the Day.

Thats a royal tuxedo urchin.Thats a great reef urchin(one of the few I would suggest putting in a reef setup).Thats a good hitchhicker for a change. Don
 
he should eat algae, and maybe coraline? I know that the black urchins will eat coraline, but I'm not positive if the tuxedos will.
 
He will eat coraline and any other algae he can scrape off of the rocks or glass. Depending on clean you keep the glass. I have had for one for years, I have never had to feed him anything. He will scrape out a living on his own. :lol:
 
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