Can I ask what makes you so sure?

Thanks for the info.

Any Nitrogen suppliments I can get that are straight nitrogen?

I just ordered voodoo juice, advanced nutrients bloom part 1 & 2, A & B.
Should that help?
DigitalCoast Reviewed by DigitalCoast on . 600W MH Yellowing Problems (Hydro Wicking) So im a couple weeks into flower and the leaves are really yellow, Beyond what I view as normal. Ive done a couple grows but this is by far my biggest plant. I use flora Nova Grow and Bloom. Room temp is usually 63-69F Any feedback on what it might be would be greatly appreciated The strain is THSeeds - Bermise Kush - Fem Rating: 5