Do you have any run off readings of your ph and ppm. That might help narrow down or at least eliminate a few possibilities, and also what is you ph and ppm reading going in ? More info the better
Last watering I used a tea so I didn’t have run off to measure this was 2 days ago. I use to water at 6.5ph but now I lowered the ph to 6.0 on my next watering today or tomorrow.
I haven’t fed the plants anything other then the dry amendments that were mixed at the beginning of grow and two teas.
Only two out of 4 plants are showing these symptoms. One us a Bruce Banner and Girl Scout Cookies.
This is from your first post on 1/7. Is this still so or did you water to runoff and measure PH & PPM?
These are photos of magnesium deficiency from a Drcannabis article regarding same.
Recommend searching for the article and giving it a read. It includes discussion about importance of PH and the use of Epsom salt to correct. Also the use of a very common supplement Cal-Mag.
Growweedeasy also has an excellent article with many of the same points.
I suspect the nutrients given lack the requisite magnesium or PH is preventing its uptake.
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I have cal mag coming in today and I will water tonight to run off and measure.
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Yeah it is one of those items you have to have in the medicine cabinet. Follow the directions and keep up the ph & PPM numbers to see if they move or are stable.
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Update: I got my cal mag last night and added it to the water. I had 5 gallons of water total once I divided the water for each plant and watered it I still didn’t have enough water for any kind of run off. Today I filled 2 5 gallon buckets for my next watering so I can make sure I have enough for 10% run off. I guess I’m way of when it comes to the amount of water I should be using.
I do have a soil PH tester which I used to test my medium and after watering my coco PH is between 6 and 6.2.
After a few days of reading I’m a 100% sure this is a iron deficiency most likely caused by nutrient lockout due to high ph watering.
Up until the last watering I did my ph has been 6.5 now I took it down to 6.0 and my last watering I did about 15% run off. When I measured the ph of run off on last watering it was 5.8 but when I tried to measure the Ppm my meter would just give me lines so I assume this meter goes up to a 1000 and my ppm was higher.
I have ordered a new ppm meter and should get it before next watering.
I made a cal-mag foliar spray and started misting the leaves hoping this will help with the iron deficiency until I get the lockout sorted.
My watering from now on will have at least 10% run off and I will not add any nutrients for next two watering.
Does this sound like a good plan or am I way off?
Does anyone know what the final outcome was? I am seeing this on one of my plants also
@eisenhorn that was my first attempted at growing Im on my 3rd grow now and doing great. Looking back I did so many different things wrong. My main mistake was treating the coco coir soil as regular soil I was trying to do the organic dry amendment grow. I flushed all my nutrients out not knowing any better. My photone app also wasnt calibrated on my 1st grow and it was off by quite a bit so the plants could have had light stress. I switched soil mixes and started using Earth Dust with no problems dont even need to ph your water if its bellow 8 jsut use a carbon filter. Now Earth Dust is going out of business and I switched to Gaia Green. Recharge is an amazing product which will help if growing organic.
Thank you fren 