Is this light stress? :(

Adi1989

Active Member
Hi guys does this look like light stress?
 

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Thanks for the help mate, I havent gone over 27c though

Also I watered a few times since and they are still the same so I dont think its under watering.

I did setup the Ozone at night, I was thinking it could be the lack of oxygen in the nighttime? As Ozone depeltes the air of oxygen, its also a sealed room
 
Hi guys does this look like light stress?
a lot of guys make it look so easy but so many things can go wrong its best to keep it simple i see either deficiency or toxicity in one of your pcs with the leaf edges turning rust colored for 1
 
That rust was over feeding the Ppm got up to 2000 and burned the tips a few weeks ago then I flushed them so brought the ppm back down. :)
 
I have 288 Quantum boards 24" above the canopy, 8 single boards (1000w of light spread out over a 3m x 3m area 9sq meter area.

What are you feeding them at? 700ppm pH? 5.8
 
Yeah about 3 meters x 3 meters so 9sq meters floor space,

Ozone at night not co2 haha

Co2 is off at night
 
1 gram per gallon of Epsom Salts. If you have 9m or 98 sqft of grow space you are 2430 watts short of light. Your issue isn't light stress especially 2 ft away from the plants.
Thanks mate, do you put one gram in every feed? I am feeding every 3 days at the moment.
I find Epsom salts doesnt really dissolve in water so I use boiling water to dissolve it, but then I do find after it starts to go solid again.

So maybe Epsom salts because it gets solid again over time can build up too much in the medium?
 
Thanks mate, do you put one gram in every feed? I am feeding every 3 days at the moment.
I find Epsom salts doesnt really dissolve in water so I use boiling water to dissolve it, but then I do find after it starts to go solid again.

So maybe Epsom salts because it gets solid again over time can build up too much in the medium?
I make a 5 gallon bucket of nutrient solution. It includes a ratio of:

A/B/Epsom
3.6/2.4/1.1

My Epsom Salts dissolve immediately in cold/cool water. It shouldn't become solid after. Not sure what you are using for nutrients but they may need to be mixed in a specific order, I do.
 
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