my new urchin

[shoura]

Hi!
This is my new urchin (my first)
Is it a Tripneustes gratilla?
I'm hoping he'll help me overcome my algae problem!
(Well even if he doesn't he's still pretty cute!)


http://reefcentral.com/gallery/data/510/133674urchin_resized-med.JPG

[shoura]

Can anyone confirm whether it is a Tripneustes Gratilla?
Thanks!

[johnski]

what size is the urchin, it certainly looks like it may be a juvenile gratilla, the reason i ask is i have an adult but the white and orange spines are shorter on mine.

[shoura]

Hi!
He's fairly small, probably 1" diameter excluding the spines at a rough guess!