the fiji pink is good to use, but bill is right. "live" sand is just sand with some bacteria on it. any sand you put in the tank will become live after a time. i would choose a calcium based sand that is slightly larger than sugar granules. just buy dry sand and rinse it very well before adding it.
before you get too deep into a reef, i would like to suggest a different tank. i have never heard of a fujimoto aquarium, but if it's a standard sized 55, it's only 12" from front to back. these can be extremely challenging to aquascape. i would suggest either a 40 "breeder" style tank, or a standard 75.
i would much prefer putting all rock in at the same time. dry base rock is much cheaper than purchasing live rock from the LFS
, and is also free of detrimental hitch hikers.
a drilled tank with a sump would be a much better setup than un-drilled with a cannister filter. if you plan to keep the rena, i would suggest rinsing it out thoroughly weekly.