ID this snail..

[Dr Begalke]

comes out at night...

 

[Dr Begalke]

better pics:

 

[zenya]

Looks like a small Trochoidean of some kind, maybe Collonista.

 

[Dr Begalke]

ya, i agree, looks like collonista, wanted to get some more opinions!
thanks!

 

[KUDA]

Great pictures by the way.

 

[airq33]

It looks like Collonista ("mini-Turbos") to me too. Check out Figure 10 on this link from Reefkeeping.com for more info. I have a bunch of them in my tank, and they never bother anything.