the live sand sealed in plastic bags at fish stores is only seeded with nitrosoma/nitrobacter bacteria strains to start the nitrogen cycle a bit faster. the same stuff you can buy in a bottle, like CYCLE, or other brands. it doen't have any micro critters, snails, micro stars, sponges or coraline to seed the tank. so it's probably better to simple add your dry sand, add some liquid bacterial boost, and place one piece of good live rock in the tank to start things off. the rock will have bugs, and worms and misc. micro life forms that will multiply as your bioload increases and gradually colonize the sand. add a rock a week to keep things going untill its fully cycled. its easier on the pocket book too.
i would also sugguest adding a few green chromis as your cycle starter fish rather than the usual blue damsels, or seargent majors or dominos. the damsels will torment any other fish you add later and be very hard to catch in a reef tank when you want to remove them. but the green chromis are nice peaceful community fish that will get along with most other fish you add later. They prefer to be a school of 3,4or 5 . nice effect and like damsels, don't cost much.
Ive seen something fishy's website, i believe they have upgraded it. sounds like a nice place to visit one day. ifi'm ever in that neighborhood.