My tank is about a year old. I've already got a standard cleanup crew, with an assortment of snails and hermits, peppermint shrimp (not sure how much he helps), and a regular brittle star. I started with live rock, but I didn't get very many critters. It came with some tiny feather dusters, a couple of brachiopods, and regular pods. I've even watched my tank at night with a red lens flashlight, and I've never seen anything new.

I know there are plenty of places online to get this stuff, but when shipping is $30-$50 for a $10 order it doesn't seem worth the cost. I've checked out a couple of the saltwater stores nearby, but none of them carry stuff like that.

So my best bet is to get a cup of sand from somebody's tank?

Thanks for the replies.