I read that article and I'll make sure not to buy any of them. I think those are the ones that you see on ebay for like $5 for 100 of them or something like that.
the mexican turbo snails are great grazers but they live in colder water than the 78-80 that some reef has and they don't last very long.
Just wanted to add another "so-so" creature sold in many stores.
Oh well viva the bumble bees
after less than 2 years my turbo bailed, 'cause i had 85 ish temp in my tank during the summer :S but the other snails like the bumble bees are still ok