Confirm Urchin ID ..with decent pic

[Spiffyguy]

So I saw this urchin at the fish store. Thing is maybe the size of a dime or so. Looked really cool so I got it. Guy didn't even charge me. I think it is a Rock Boring Urchin, Echinometra mathaei, based on what I can find on the net. Anyone confirm that? Also any comments on the species? Thanks

 

[Letmegrow]

That what I looked up mine as too. I have had many, After a year mine did not get bigger than 3" across, they ate coraline, never seen'em go after macro, on purpose or accident.

 

[The steven liu]

Looks like purple urchin, they're fine in reef tanks, they eat coraline but also spread them so don't worry.

 

[Spiffyguy]

cool. I stuffed this guy in last night. haven't seen him since but he is very small. I figured he was fairly safe. Good to know the ID is right though.

 

[romunov]

Echinoderms in aquaria
Sea Urchins, A Testy Subject