So a few days ago i noticed my autoflower really yellowing despite nutrients being goven plemty of nitrogen since i assumed it was a nitrogen deficiency but i checked the runoff 7.0 exactly so its not the runoff. Basically perfect. I gave it a good watering and plenty of nutrients but yet this problem consistants and the leaves a few are pointing up. Temp is anywhere from 80-83. Humidity between 40-55. Anyone know what it most likely is? Light stress? Burn? I got a new light is a 100 watt so im afraid maybe its to much of a jump from the 40 watt light?
The proper soil pH is 6.3 to 6.8. pH is on a logarithmic scale, so 7.0 vs. 6.8 is more significant than you might think.
What is your runoff PPM? What soil are you using? What nutrient products are you using?
A 100 watt light isn’t too intense for a cannabis plant. The plant is capable of withstanding far more than 100 watts.
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Yeah i would lower the ph just a bit. Check runiff ph get that to like 6.5 6.6
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How do you get the runoff ppm? And the soil im using is a mix off foxfarms ocean and foxfarms happy frog i believe.
Ill do that, next watering ill do between 6.3 and 6.5 so lower it a bit quicker
I expect your plant is overfed rather than underfed, which is why I asked about PPM. The plant is too small to have depleted the nutrients in an OF/HF mix.
Capture runoff just as you did for the pH test and use a PPM meter to test the PPM. It should be ~1,000 PPM give or take.
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Okay ill have to purchase one relatovely soon then off amazon. I ordered some more seeds as well this time super skunk and seems like a begginer strain as well.
Welcome to the community!!
There are a bunch of perimeters that factor into what’s going on with your plant. Like you mentioned pH out but didn’t say what your pH in is. Also, what type of nutrients you’re using, last feed, etc.
Please copy/paste with answers the Support Ticket below so fellow Growmies can help you evaluate the situation. If you don’t know an answer, just put N/A or such. 
Support Ticket:
-What strain, Seed bank, or bag seed (photo or auto)
-Age of plant
-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
-Vessels: Type and capacity of container (fabric, plastic, etc)
-PH and TDS of Water, Solution, runoff (if Applicable)
-PPM/TDS or EC of nutrient solution if applicable
-Method used to measure PH and TDS
-Indoor or Outdoor if indoor, size of grow space
-Light system List brand and wattage/spectrum
-Actual wattage draw of lights
-Current Light Schedule
-Temps; Day, Night
-Humidity; Day, Night
-Ventilation system; Yes, No, Size
-AC, Humidifier, De-humidifier,
-Co2; Yes, No
If growing Hydro some additional questions:
-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution
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Jack herer, dispensery seed, auto)
-Age of plant 4 weeks veg, 4 weeks flower
-Method: Soil, foxfarms ocean and foxfarms happy tree frog
3 gallon fabric pot
-7.0 runoff with around 6.7 to 7 in
No meter yet
-ph metwe
-Indoor 2 by 2 by 4 grow tent
-100 watt viprastectra 100 watt full spectrun grow lights
Not sure not measured but currently around 80 id say
-24 hour light cycle
-80-83 temp
-40-55 humidity
-no ventilation system air purifier and 1 vivosun fan
-no extras
Suggestions for the next grow:
Grow a photoperiod plant. Autos are quirky and are not a good option for beginners. It’s frustrating that seed sellers promote autos as easier to grow. They are certainly not.
Get pH and PPM meters and use them to help manage your grow. pH in soil should be in the range 6.3 to 6.8. PPM should be maintained at ~1,000.
100 watts is not sufficient to flower a plant. A recommended minimum wattage for a single plant is 200 watts.
Start a grow thread here for your grows. The community will help you be successful.
You will find this helpful:
I hope you don’t find all this frustrating. Hang in there and you’ll be here advising new growers yourself in no time.
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Thanks i appreciate all the tips i tried a photoperiod the first tike vegged 3 months the flowered but messed it up, for whatever reason it was drooping and so i replaced the soil but it was a brand new pack so it was to many nutrients and i shook up the roots to much so it basically killed it hoping to finish this run then start tbe next after got an awsome deal and i appreciate the suggestion but already bought the 20 pack of super skubk high oercentage of indica so im sure ill have a way easier time
mine did the same thing all I did was just feed her water and they should come back to normal
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Makes sense yeah rn im finishing up my autos they are 6 weeks rn so only a couple weeks left before harvest first harvest so pretty exciting
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