I don't know about online, but check with LFS or post a message for reefers in your area. I got several hundred pounds for free from a guy who got out of reefing and had it sitting in his garage. The wife wanting to get rid of it was a big help. It's worth a try and no shipping charges.
Good Luck
Bryan
I would recommend that you check out Harbor Aquatics. They had some live base rock a couple of months ago. You'll likely have to call to find out if they have any left.
