Baby Snails

[Europhyllia]

I found several baby snails on the glass this morning (very tiny - only 1mm or so) and was wondering if any of my snails could reproduce in the aquarium?
The only ones I see laying eggs are the Cerith snails but I think I read somewhere that Ceriths usually are not able to grow from egg to snail in aquaria.
I have:
Cerith (these lay tons of eggs - I think I have 4 or 5 eggs strands on the glass right now)
Trochus
Astrea
Fighting Conchs
1 Turbo
Nassarius
Chestnut Turbos

Can any of these be tank bred?

[Mr Cob]

I'm pretty sure these can:

Astrea
Turbo
Nassarius

[Europhyllia]

Thanks Rob. Their houses look like tiny Trochus houses so the closest will be Astrea. I am hopeing a few make it to big snail size. Homeraised snails would be nice :)

[joelb]

i have a few snails that live in the sandbed, with trunks that stick out of the sand... whatever those are called, i have a lot of baby snails that look like those. with real glossy little shells. also others, but those are the coolest looking.

[Europhyllia]

I have hundreds of them now.
At night when the tank lights are off I can see the white dots covering the rocks. It's amazing. I can't wait to see what type of snails they turn out to be.
Hopefully I'll have enough people wanting tank bred clean up crews. There's no way I could sustain all of these snails once they grow bigger!

I am pretty sure they're the Banded Trochus (http://www.liveaquaria.com/product/prod_display.cfm?c=497+526+564&pcatid=564). I can already see the bands on some of the babies.