Buy a few pounds and seed dry rock. I don't like Florida rock personally. Its usually mined dry limerock maricultured which rarely have the shape options the good old fiji rock use to have. Primarily I don't like it because being local it's also too live with all types of pistol shrimp, mantis, macro algae and other creatures I don't want in my rock. The old shipped in wet newspaper, foul smelling, cure in a bin for weeks before use fiji rock mostly only had amphipods and bristle and beneficial hitchhikers eventually turn back up after the trauma of being shipped. I'd personally buy dry rock in the shapes/style I like and seed it with a few pieces of rock from an established set up before spending that kind of money on limerock dumped in the ocean and sold.