What’s going on red edges

ab2t2000

Well-Known Member
So I’m on week 4 veg came in other day and got red edges can any help also got yellowing dieing leaf’s brown spots and stems are soild hard
Ph 5.9
Ec 1.5
Temps been 24-26 c day
Temps been 16-18 c night
Light roughly 3ft above on 600w led
Autopots
Humidity 65-70
 

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Phytoplankton

Well-Known Member
Nutes? What kind and how often? What media are you growing in? I'm not familiar with that specific light, but 3 feet above the canopy seems a bit high, what's the manufacturer recommend? To me, they look hungry. But we need more info.
 

ab2t2000

Well-Known Member
The nutrients are idrolab I’m in coco it’s recommended 15inc but there really strong leds adjusts 720 and watering is done by autopots system
 

ab2t2000

Well-Known Member
Nutes? What kind and how often? What media are you growing in? I'm not familiar with that specific light, but 3 feet above the canopy seems a bit high, what's the manufacturer recommend? To me, they look hungry. But we need more info.
Tell me what’s else you Will need to know please I’m stressed
 

StoneDHedgE

Well-Known Member
Flush with your current feed and top water for a bit. Using autopots this grow myself. 2.5 weeks in flower after 5 week veg from seed. I'm feeding slightly less than you. Can't wait to tie them down abit this weekend. 20240328_095020.jpg
 
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Phytoplankton

Well-Known Member
The nutrients are idrolab I’m in coco it’s recommended 15inc but there really strong leds adjusts 720 and watering is done by autopots system
Idrolab makes a whole suite of nutes, which ones are you using? Are you feeding calmag? Coco is devoid of nutes, you have to supply everything. I'd also drop the light down to 18-24 in. and see how they react.
 

Phytoplankton

Well-Known Member
This is my feed chart no cal mag @Phytoplankton
I would start adding calmag or do an epsom salt foliar spray (you'll see pretty quick results with a foliar spray), I think you're in the early stages of a Mg deficiency, light green leaves with reddish edges:

"Magnesium plays a vital role in chlorophyll production and photosynthesis. A lack of magnesium can cause purple or reddish discoloration in cannabis leaves, typically starting from the leaf edges. Use magnesium-rich supplements or foliar sprays to correct deficiencies."
 

ProPheT 216

Well-Known Member
What ppm scale are you on for ec? Your ec is to high. don't raise it, drop it and feed more often. let us know your scale and we can help moreEC_PPM_Conversion_chart.jpg
 

ab2t2000

Well-Known Member
I would start adding calmag or do an epsom salt foliar spray (you'll see pretty quick results with a foliar spray), I think you're in the early stages of a Mg deficiency, light green leaves with reddish edges:

"Magnesium plays a vital role in chlorophyll production and photosynthesis. A lack of magnesium can cause
What ppm scale are you on for ec? Your ec is to high. don't raise it, drop it and feed more often. let us know your scale and we can help moreView attachment 5381725
I got a 1.5 ec also @conor c im leaning toward a magnesium deficiency but the shop I go to said it’s pythium?
 
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