basically, they are both aragonite sand (assuming the LS are the packaged one from caribsea). If you get the LS from ur LFS, most likely they are aragonite sand, but you can ask them about it to make sure.
ok, u get the bacteria from the live sand to kick start your cycle and caribsea aragonite is just 'dry' sand. As to which is gonna to be your base layer, it depends on the grain of the sand u got, the smaller sand are gonna 'drop' to the bottom eventually. That said, I am not sure on this, but I don't think it will matter which one goes in first. Correction anyone???
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Started on Jan 24, cycled on Feb 17
125 gallons (72" x 18" x 22"), 20 gallons sump, 29 gallons fuge. 90 lbs sugar fine sand in MT and 30 in fuge.
Equipments:
Coralife Super Skimmer 220 w/ an air pump to increase micro bubbles, Mag drive 9.5 return pump
2 Maxi 900 and Rio+ 2100 as powerheads, Mag 350 filter
Lighting:
110watts PC, 70watts NO
Resident:
2 Polyps Ricordia
Royal Gramma, Lawnmower Blenny
Sally Light Foot
Pepermint Shrimp
70 Blue Leg Hermits
25 Snails | 
Caribsea argon vs Sand 
