Currently have a variety of cerith, astreas and margaritas in my three BB tanks. The ceriths are doing okay without the sandbed in the one tank, but I don't see them lasting long without their natural environment.
Astreas, as Newguy pointed out, are not able to right themselves after a fall. Don't know haw many astreas I've saved over the years when finding that they've fallen and can't get up

The margaritas I have are much more adept at flipping themselves upright if they fall. Both astreas and margaritas have done well enough in my current tanks, though I think I am a little more partial to the margaritas. Tank temps are kept under 82F, and usually are 78F-80F with their room air conditioned.
Must have had some trochus in my first reef, though that was years ago, and J&L doesn't seem to carry them. Tried a Google search for them, and found nothing but foreign language sites
Don't know anything about money or ringed cowries, though they sound like they get big and may need sandbeds.
All my current snails were purchased locally and did not suffer the immediate strains of shipping, which I think accounts for many losses.
Will have a look at one of the lfs tonight to see what kinds of snails they have. Also want to make sure I don't import fish diseases when I introduce them into my tanks
Thanks for the advice
