I found this guy on CL. His ad says its aquarium safe and I'm sure it is but I would like to get other people's opinion. He's charging me $.50/lb for black sand so it sounds pretty good and $10 for shipping but I'm picking it up.
http://orangecounty.craigslist.org/for/1449109466.html
http://orangecounty.craigslist.org/for/1449109466.html