Hey Prodaytrader,

I used 15" centers for the plant sites on my flower systems, basically 2 x 3 systems, for a total of 6 sites each. On the veg system I put the sites on 7" centers, for a 6 x 2 system for 12 sites. All systems use 3" net pots (same ones the aeroflow systems).

If you're going with 1 system for start to finish, I'd go with more room (15" spacing.. or so), because what is a 10-14" plant in veg can stretch up to more than 36" in total height and be fairly bushy dependent on how you do things. The reason I bring this up, the frames I use put my channels, 26" up, so this is a consideration in terms of total height, which and be over 5' if you're growing a tall strain.

Hope this helps.

Peace,

Farmer Rich