Hey guys I'm in the end of week 3 veg and for the last week my plants have shown no growth..they look very droopy. Do u think its overfeeding ? Is my grow light too far? They are getting 450 ppfd right now ..my spiderfarmer4000 is 40 inches away from the canopy...temps 75f humidity 60-65 co2 1200 - 900
Thank you
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They look pretty good. Maybe try increasing to 80-82F leaf surface temp and bump up to 600 PPFD. That should get you in line with DLI and VPD.
Try sticking with an every other day routine, pick up your pots and feel for weight differences when they are wet and dry. Also, I see alot on here where people question if their light is to close and therefore causing light burn. I.m.o unless you have a very powerful light, then light burn would be at the bottom of my list of suspects. Now before everyone says I'm wrong and that it happens , I agree it does, but cannabis is one of the highest light consuming plants on the planet and to burn them is harder than you might think. I believe people have problems from the radiant heat from the light as opposed to the intensity and thats what causes the browning of upper leaves and colas.Hope this helps Good Growing!
Are they auto or photo was this before lights off they will drop some before they go to sleep as well
Are you watering and getting 15 percent runoff out of the bottom,your going to need some pans up under them also,the girls look thirsty to me