Purple Pincushion Urchin Eats Snails

[cvu]

Three consecutive days I see my purple eating a snail. First day thinking a snail was already dead so it just doing its cleanup job. Second day on the different snail and it made me wonder. Now today, saw it on the different snail. Hmm. Does anybody have problems with this pink urchin or it's just my luck that 3 snails died consecutively in 3 days and the urchin just does its job?

 

[Coloredrock]

I thought they were strictly herbivores were they just old shells that had algae growing in them?

 

[cvu]

I thought they were strictly herbivores were they just old shells that had algae growing in them?

No, they're not old and no algae on them. And I didn't see those shelves all the sand the day before. In all three cases I saw, the urchin always situated itself at the opening of the shelves. Today it will go back to the LPS 😀