Sneaky. The difference between the two is:
"Oceans' Garden sells only animals that have been captured using sustainable harvesting techniques or have been captive bred. We are committed to saving the reefs by providing a fair, living wage to the indigenous fishermen. A fair wage to the workers means they will not have to resort to cyanide and other destructive practices to increase their catch and feed their families."
This would explain price differences too. So I'm guessing, saltwaterfish.com does not follow these sustainable harvesting practices, and Oceans' Gardens is the branch of their company that does?