DWC grow nirvana's AK48, Chrystal, Ice, Master Kush

I am growing 40 plants in two separate DWC/top feeder systems(20 plants ea.) in a 4x3 grow tent, plants dont have much space between them, veg 6wks under (1) 1000 watt mh/hps lamp and ballast, in week one flowering, USing Advanced nutrients GMB three part, will add big bud for flowering, any tips? does anyone know about what kind of yield i should get per plant, i know there is no way to get an exact yield but i just want a good scientific guess what to expect, thanks any info welcomed

I guess I got here too late.
I guess if they didn't die from overcrowding you had at least 75% females and that's still too many.
I guess by now you've realized you have way too many plants.
Buy more tents and lights.
Better have a good carbon filter setup too.
If 30 plants in those small spaces I'm guessing 15 oz. if you have two 1000 watt lights.
But you could have done the same with 5 or 6 plants.