My LFS carries live rock, but the chunks were too large for me to really do much with them in my tank, and between that and cost, I went with mostly dry rock. I did include a piece of live rock as well, though. If it came with any hitchhikers, they're of the microscopic variety. The snails have brought in some pods at least.
I think it's pretty cool that my tank will eventually have surprises, living critters that I didn't add intentionally.
I'm concerned about bad hitchhikers, though, but for kind of weird reasons. Especially if it's some type of shrimp or crab! They may be easier to catch, but what do I do once I catch it? I don't have a sump to throw them in (not enough space). I don't want to kill them.
I think it's pretty cool that my tank will eventually have surprises, living critters that I didn't add intentionally.
I'm concerned about bad hitchhikers, though, but for kind of weird reasons. Especially if it's some type of shrimp or crab! They may be easier to catch, but what do I do once I catch it? I don't have a sump to throw them in (not enough space). I don't want to kill them.