Free Urchin??

[97stallion]

Well I was cleaning my tank today and after I got done, i notice some spiney thing crawling under one of my rocks. It's purple in color and has green spikes coming out of it? Anybody have a clue as to what this is? I tried to take some pics, but they're kinda fuzzy. Here they are.

 

[alison]

:happyfish Hi, kinda hard to tell, but be careful til ya know. If I remember right, the inner soft spines can be poisonous? Good luck, I love urchins. -ali

 

[97stallion]

ya, I didn't touch it with my bare hands. I poked at it lightly to see if I could get in better spot so I could take some pics, but it wasn't budging without a fight.