At one point Jayson over at saltwaterconnection.com imported something like 11,000lbs of sand from the same quarry as caribsea and southdown. The only problem is that it is a royal PITA to ship "30 lb. bags of sand," unless you're bringing in a skid of sand (about 64 bags or something). So if you're only looking for something like 10 bags or less, you'll probably end up paying the same amount per bag than if you had just run over to Big Al's and bought a bag of Caribsea.
Last year Canadian Man had brough in a skid and the year before that I had brought in a skid ... Maybe if there's enough demand we can look at doing something like this again .. but for small amounts you're better off just paying the $25-35 per bag of the Caribsea stuff.
My advice is to forget about southdown .. unless you drive a truck and can bring a skid of this stuff in from the U.S. east coast yourself, it's just not gonna be cost-effective to bring any in. With that said, there was a guy in the bargain finder about a year ago who was selling Southdown. But (if memory serves correctly) it was only a few dollars cheaper than the Caribsea stuff. I guess sand just doesn't fgrow on trees around here.
