What are the temps like? Is your environment overly warm? How’s you humidity?
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Temps hold at 72°f … RH 50-60%. Haven’t added nutes yet. Exhaust fan 390cu/min 2 6" fans pointed at plants, 1 12" fan pointed at light
I guess it can only be light intensity idk…
How big is the grow area? If it is a 2x4x5 for example, that would be 40 cubic feet. And you be replacing the air approximately 10 times per minute. But if your space is a room at say 10x10x8 that would be 800 cubic feet, and 1/2 replacement per minute.
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I’m in 5x5x8 so 200cu. Im only running 50% fan speed so basically im replacing the air once a minute if im figuring right
The manufacturer says this about intensity
The highest i got was 80
That seems appropriate. I might turn it up a little, but I doubt that is you’re issue.
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Oops… misunderstood
I’m using the SF-2000 (little brother of your light). I ignored the height recommendations, and adjusted the height based on DLI. My light ended up being about 14" at 100% during veg with a DLI of ~60 (18 hour measurement). In fact during flower, I left it at 100%, but raised it to ~18" and got a DLI of 45 (12 hour measurement). So I doubt it is light. But I guess it could be.
Maybe Why Are My Cannabis Leaves Twisting Sideways and Curling? - GanjaShark.com is applicable?
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I think that link actually did help… my water going in is ph 6.5 measuring runoff its 5.8… so that shouldn’t be the problem.
I’ve been told to start adding nutes when HF ppm drops under 1000. It was 900 but I thought I was playing it safe by waiting. I think I’m going to water and add nutes tonight
I use the flood/drought method of watering and tell by weight… so I think overwatering is not the issue
Good luck! Hope you get there, and Happy Growing!
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thanks for your help
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I don’t believe what you’re seeing is light related either.
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What do you think it is? They been doing great until yesterday. The only thing changed is increasing intensity from 70 to 80%
I agree.
Lazyness on my part in explaining things.
Knowing what the soil ph started at before adding nutrients I think is a good baseline to have, then seeing where its trending.
While watching your plants growth.
This seems to be more complex and therefor I steer people towards the slurry method for ph, as it can be taken in this moment and we can know what the PH is right now.
I personally found that reading ph runoff worked for me when I grew in soil but it was always way off I just learned how many points off it could be before I generally started having a problem.
Which was short lived since I had fabric pots and ensured lots of run off to avoid that ph change, since all feed and water days were given at 6.5 like a true OCD farmer.
@bonger your leafs arnt canoeing from. What I can see and everything is dark green so allow your run off to drop in ppm before you feed, keep an eye on the color of the leafs once they loose that super dark green and go to just green feed. But watch ppm as well.
As for the lighting as @dbrn32 said
So I would continue on giving them lots of light as this will help control your stretch a bit, reducing light makes them stretch more.
Your tops? Not sure ide kepe trucking on and giving them proper care might just go away or it will get worse and more noticeable which will allow us to better diagnose it.
Giving them wind yeah?
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Fir wind i have 2 6" fans pointed at plants 1 12" fan pointing at the light and the exhaust fan running at about 200cu/min. The tent has 200cu The plants are moving a little
I just put soil in cup to do slurry test
I was going to start feeding around 600-700ppm. They read 900 ppm 2 days ago. I was thinking I could wait until tomorrow morning to water but I might water tonight, depending on ppm, and start the 321 solution
Sounds good, you shouldn’t need a fan on the light the exhaust fan will suck out the hot air as it rises.
Migjt be better on your plants to give them a bit of stress and toughness
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So.
Ph very consistent between all pots 60.0-60.2
Ppm varied… but wow…lowest was 188 highest was 294 lol
I think it’s time to feed
Runoff read 900 ppm on the one that read 294 2 days ago. Does that seem reasonable or was the runoff test bad reading
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Assume you mean pH 6.00 - 6.02? But yeah, I’d say feed them, and if pH was 6 out maybe pH nutes to 6.6 6.7.
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Me too. Although I always felt like keeping my ph between 6 and 6.5 was best results.
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Omg… 
Yes, you are correct. I may be dyslexic or just brain damaged
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