i'm planing to start a 2nd attempt at auto flower strain grow. my 1st was in coco mix. i made the mistake of confining the root space & over watering. i would like to use a coco/hydrostone mix in a hydrofarm system.i saw some modifications being made to increase air flow by drilling holes & adding air stones.this is the information i would like specifically the seeds i am using have so far had outstanding gemination rates. also they they do flower at 15-18 day mark w/ full flower by the 21st day. my seeds are 1st gen. feminized. any help would be appreciated. wish i read the threads before my 1st run................thnx.