does anyone know exactly how much can a 400 hps light yeild? and also have anyone ever ordered white widow seeds from cannabis.com because i have and its been over a week now. also if i want super duper dense buds will my 400 watt give me that denseness? and how many square feet can i cover with that setup? and has anyone ever used fox farm ocean forest and if so what kindve nutrients did you use? thankyou anyprofessional advice would help
1. Yield is strain dependent and will vary accordingly. A 400w HPS works great and will produce density consistent with your genetics. White widow should work well.
2. Herbies and Attitude have worked for me.
3. In my experience, a 400w HPS will cover a 4x4 area, no problem.
4. FoxFarm is a mistake because you have no way to determine what the soil amendments actually are and FoxFarm refuses to reveal that crucial data to their customers. Best bet is to get some Promix or Sunshine #4 and amend it with various organics in accordance with the manufacturers instructions. Worm castings, bat guano, fossilized seabird guano, these are some potential amendments.