I had credit at liveaquaria and decided to go ahead and get an abalone the other day. I got it on Friday and it's a REALLY cool lookin thing to add to your tank. I didn't know that there could be a difference in where they're from but luckily it was the Haliotis sp that MikeP says would work. They're only 18 bucks compared to the 40 that aqss had them for so if you're lookin to get somethin new and different for your tank get one of them.

Oh yeah, it's a really good cleaner for algae on your glass and rocks too!