Hello, I am a new grower in need of some help/opinions. Tho Im far from what I would call knowledgeable, this isn’t my first rodeo. I’m about 4 grows in with all 4 being “photos”… I started from a storage tub and cfl’s and upgraded each grow. Now on my 5th grow I have a 4x4 tent, a 300w Platinum LED grow light, 6in Carbon filter/in-line fan (which I feel is too much and I’m in the process of downgrading to a 4in), Hum/DeHumid, Fan, ect…However, I decided to try a auto this time around which I have no experience with. I’m using FFOF soil, on day 32. I haven’t gave any nutes at all and only have fed tap water Ph’d at 6.5… I have had signs of clawing n drooping since about day 18/20, n now seeing purple under leaves, stems/branches, (Temps are a little on the cooler side) n bottom leaves are beginning to yellow n spot slightly… I’m pretty confident it’s not from over watering, I have watered about every 3 days and have waited until plant/pot was pretty much weightless… Temps have been about 66-72 f and about 30-42 Rh… Not sure if its a nitro deficiency being as tho I haven’t gave any nutes or what? Not thinking it’s a Cal/Mag issue being as tho I’m using tap/city water and my Ppm’s haven’t been to far off… Thought it could have been because I had the fan at a bad angle and forced her into “protection mode” but that doesn’t seem to be the issue either…
@BackAtIt Hello, the temperature and the fan here are definitely not the cause of problems. This is already a running power problem, I’m not so expert to draw a conclusion from the photo. You need to know what ppm of nutrient solution you give to the plant and at the exit from the drainage what ppm and what ph you have when watering and at the exit. And what you feed the plant and how you feed it. You already have the stage of flowering food should be. Sorry if I missed something, I didn’t understand. I am Russian-speaking.
@BackAtIt And so the photo shows that you need potassium and phosphorus. And in excess of nitrogen. But this is my personal opinion.
I haven’t given the plant and mixture of nutrient solution yet. Nothing but tap water Ph’d at 6.5… The PPm’s going in have been less than 200, coming out has varied with the highest being about 1200 (first big watering) and the last being about 800 (last watering)… FFOF is a “hot soil” which is why I haven’t used any nutes yet and don’t plan to until about day 40.
@BackAtIt Even the best substrate can not provide the plant for the entire growth cycle. at the first signs of flowering, he shed the substrate well and began to feed the plants with fertilizer for flowering. Moreover, this is an autoflowering variety , it has a short flowering period, you can not delay the nutrition for the color.
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@BackAtIt She eats not what she wants but what she has.