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HELP! Need help identifying the deficiency...

B

BigredTexan

New member
I have two plants, different strains, in the same tent, same soil, same nutrients same light etc... one is super healthy, big and beautiful and the other looks like this.... Click image for larger version Name: image_150165.jpg Views: 5 Size: 1.78 MB ID: 551514
Click image for larger version Name: IMG_3882.jpg Views: 0 Size: 2.93 MB ID: 551515
 
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50% humidity +/- 5%, 80 degrees F +/- 5, This girl is about 7" taller than my other one and she has always had strange curly leaves that I have never seen before but never has she looked burnt like this. I keep the light a minimum of 12" from the top of the tallest plant but I will adjust and tilt to 16" on 1 side and see if that helps. I am running a Mars Hydro FC-E 4800 480W light at 100%. Should I turn it down?
 
yup looks like heat stress. If your temps and humidity have a variance of 5 it means you either have a crappy measurement tool or you are guessing. 5 degrees can make all the difference to some strains. for instance if you say the temp is 80 with a 5 degree variance, 75F is okay but 85F is likely too hot for that strain. Additionally that light is likely too close. It does look like a combination light burn and heat/humidity.

Move the light to 18-20 inches from the top of the tallest plant. correct your temp/humidity variance, water properly and feed regularly...she looks a little nitrogen deficient (pale).

temp should be a nice 80F (lights on) and 40% humidity at this stage in growth.
 
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