help

I don't know how to post and or where to post this...but here goes (and please some direct me) This is oldg and I've been at this for a few years now and am a decent "indoor" grower;however, my plants are only giving me back about 10 to 12 grms dry wt per plt. I use 3 gal. containers with a soilesless mixture (60% worm castings, 20% perilite and 20% vermiculite. For vegging food I only use Alaska 5-1-1 and for flowering I've been using Alaska 0-10-10 (however, I've just switched to the fox farm flowering food--the 3 pk): I'm growing my second batch of PPP right now and they are on their 49th day of flowering. Any suggestions? I'm currently growing PPP...I am also using 6 400 watt and 2 600 watt for lighting.

10-12 grams per plant? if that is true, it sounds to me like you're not giving them any nutes...you are however, so thats odd...maybe that alaska stuff is just shit? with that much lighting, i don't even understnd how you yield so low...try getting some GH microflora, and microbloom...good nutes, and they're cheap...i feel for ya g...