Help!!! My leaves turning reddish brown

U

UpNorthGrow1021

Active Member
So, I just switched my plant to the bloom cycle yesterday, and gave it nutrients. Today, I check the tent and a bunch of the leaves are turning a reddish brown. No issues the entire grow. Bright dark green leaves, no stretching. It's 2 plants in a DWC in a 4x5 grow tent with a 1000 watt mhd bulb. Temperature has always been kept at 86 degrees.
 

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What a shit time for this to happen, i don't really give out much advice these days...but best bet is to check ur water temp and ph is within good range..its looking like a calcium deficiency but could very well be lock out from too much or too less of something.
 
That's what I'd do, 4sho.. back on the veg nutes fresh water/Ph.. for a week or two..they could get some extra N during the stretch and Up the dose abit
 
This link may help you now and in the future it’s from Dutch passion and shows nearly all elements and their effect for overdose or over feed and how to fix with pics and guides on all! https://dutch-passion.com/en/blog/a-visual-guide-to-cannabis-deficiencies-n987

Links for reference and help are fine? And to another forum I hope is allowed??? I am new here I read rules and didn’t see any problem posting a link for information when asked by another member.
 
If they were starved for N the older lower leaves would be fading to yellow. If anything it's long term overfeeding beginning to show up and the timing is just coincidence.

Nitrogen.jpg

CervantesNutrientChart.jpg

Not going to suddenly show an N deficiency 24 hours after switching nutes.

:peace:
 
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Pretty muxh ZERO tip burn, so not from overfeeding...

I do however agree that signs of deficiencies and problems can show up days or weeks later , that's a no brainer.

Starved on N was abit of an overkill statement.
 
If it's 86 in that tent first thing I'm gonna check is the water temp, also you mentioned you are running metal halide bulb? 86 is on the very high side of the temp you want to be at. HPS bulb runs cooler if you can get one and run both lights in your ballast which I'm assuming you can because I'm not seeing any lines in the pics. Also if you have a laser temp is best to check the leaf surface temperature because at those temperatures your vpd is gonna be to high because the HID lights. I'm thinking heat stress is a factor here as well.
 
Onextremebuzz said:
If it's 86 in that tent first thing I'm gonna check is the water temp, also you mentioned you are running metal halide bulb? 86 is on the very high side of the temp you want to be at. HPS bulb runs cooler if you can get one and run both lights in your ballast which I'm assuming you can because I'm not seeing any lines in the pics. Also if you have a laser temp is best to check the leaf surface temperature because at those temperatures your vpd is gonna be to high because the HID lights. I'm thinking heat stress is a factor here as well.
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Shouldn't you be going to 110% RH to get rid of all those thirps?
 
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