Cowrie snails

[fishy.22]

Hi guys,
I've kept cowries in the past in reef tanks and never noticed a problem with them grazing any of my corals, but I keep hearing that they do.
Does anyone have any specific experience with this? Or have a certain species that does worst with this?
I really like these guys especially when they bring their full mantle out and cruise around the tank.
Thanks!

 

[pagojoe]

They are generally harmless. The larger ones are more likely to starve and become a problem.

Cheers,



Don

 

[fishy.22]

Thanks a lot Don, by the way, what is that amazing critter as your picture?

 

[pagojoe]

It's a Sieve Cowry, Cypraea cribraria. They're usually found in association with orange sponge that is a perfect match for the mantle. You'd think they'd be glaringly obvious on the reef, but they can be pretty well camouflaged!


Don