Without going to look I believe this site offers Natures Ocean LS and Florida LS. Natures Ocean is a packaged product and the other is harvested from off shore. I've never used anything but the Natures Ocean myself. So I can't comment on the other. I prefer to use a combination of sands to develope a DSB(deep sand bed). I like to use about 80% caribsea products( oolitic and sea flor grade sands) the remaining 20% I like to use the Natures Ocean LS. The depth is your choice...I prefer a DSB of 5"-^' depth. To figure how much you need use this formula...
(measurements are in inches)
length x width x desired depth of sand bed x .0579 = lbs of sand needed