Urchins killing snails

[faerykisses]

Has anyone else encountered their urchins killing snails? I have a pushpin urchin and a black spiny black urchin. Yesterday when I came home from work, both urchins were sharing a snail. I was not aware that these guys can eat snails. Now I am not sure if the snail was already dead and they just ate him, or if they killed him and ate him.

Anyone have any similar experiences?

TIA

 

[DragonForce]

It is much more likely that the snail died and they were doing their cleanup jobs.

 

[faerykisses]

Cool.

so its ok to leave any dead snails for treats to my urchins...or should they be removed because they can cause water problems?