any advice for northern lights ebb and flow grow

jst put 51 seeds in prop tray and was just looking for any advice anyone can give for growing nl indoors on ebb and flow in 4x4, 2x4 and closte is what space imfilling. thanks.

I am using grow box for hydroponics indoor growing and it provide speedy and nutrition plant. This grow boxes is custom designed and fitted specifically for growing indoors according to your requirement and preference. So I suggest you to use it to avoid such kind of problems.