so I have six plants top44 and there about a week old but only have there third leafs set but I switched from a pre nuted soil to just some reg potting soil without nutes so I was wander ing if I grow they for 3 weeks starting to day then flower them under only blue mh light what would be the result please repond heres link for my grow journal http://forum.grasscity.com/grow-jou...-44-grow-under-400-watt-mh-2.html#post1714053
Why did you make two threads? Who cares just grow it and find out. EDIT: Sorry for being so course with you. But making a prediction on yield that early is like looking at your thumbnail and guessing how long it will get in one month. Your guess is as good as mine.
He cares...but I would say flowering under only the blue spectrum isnt good practice, especially when your worried about getting the most yield. Though I cant give you an estimate, I would guess low since you are flowering under a MH lamp.