I want to get a clean up crew consisting of only snails for my 29 gallon biocube, and I want 25-30 of them. I want to get them cheap, but the only place where I have found a make your own clean up crew is on liveaquaria, and they require a minimum of $75! My LFS has a very limited selection of snails that would work, so that option is out to. If anyone could help, that would be great! Thanks!