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You have pests on your leaves. I can see two types just in the first photo of the last lot you posted. Look closely and you will see them.
 
Not sure of my plants are unhealthy or not. Larger one seems to be developing a brown spot on one leaf. The other two have rounded leaves and one seems to be growing differently from the other ones

The larger plant with the brown spot is critical Northern Lights and the other two are super skunk if that matters
 

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Hi all. My first grow. The plant is over 6 weeks old. The upper leaves of one plant do not want to open and are twisted. Just in case, I raised the lamp to a height of 40 cm from the top of the cones (it was 15-20 cm), added another fan to lower the temperature lower (it was 30 degrees Celsius, now 26). But maybe it's something else and it's not overheating, as I suggested? I feed my plants with Advanced Nutrients, do doses according to the calculator on their website. A neighboring bush, with the same care, feels much better and does not have such problems. Where could I have made a mistake and how can I fix it?
 

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I've never had that issue.

Read the leaf problem part of the website. Looks like stress of some sort.
 
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I didn't see that fan. Well spotted.

Yes 30⁰C temps in the canopy and higher in the top of the tent with that fan will wind burn the crap out of them which is what's happened.

Keep temps down now your in flower...23 to 24 even a bit lower with really big buds.
 
HELP!!!
My plants seem to be developing nutrient burn. They are yellowing around the edges and starting to cut upward. I think I overdid it on the last batch of nutrient water. Can I flush it with 5-6 ph water? Pictures and more details attached
 

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Yes. Give it a flush with pH'ed water.

Sometimes it can be difficult to measure the pH of plain water so adding a tiny amount of nute to get a reading is fine.

It's not really looking like a nute burn though so I'd just keep going and stick to a good feeding regime. Young plants in veg can show all sorts of leaf anomalies unrelated to what you are doing...don't panic.

A pH of 6 in coco in veg should be fine. You're likely overwatering them though so just be careful of that. Once a day just a small amount around the outside of the roots should be more than enough at this stage.

If your pots are heavy wait a bit before watering.
 
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"A pH of 6 in coco in veg should be fine. You're likely overwatering them though so just be careful of that. Once a day just a small amount around the outside of the roots should be more than enough at this stage."
ok so maybe I'm over watering. I had been giving my plants a gallon of nute water between them every 2-3 days
 
What's the brand of your light and how far away from the tops of plants ? Don't stress out and don't think about removie any leaf. You gotta figure first how to grow to a harvest then think about all the types of training that can be done. Also next grow put somemore perlite small stones in that mix airiate it so it doesn't compact. You don't have nute burn.
 
Atriax said:
HELP!!!
My plants seem to be developing nutrient burn. They are yellowing around the edges and starting to cut upward. I think I overdid it on the last batch of nutrient water. Can I flush it with 5-6 ph water? Pictures and more details attached [/QUOTE


"A pH of 6 in coco in veg should be fine. You're likely overwatering them though so just be careful of that. Once a day just a small amount around the outside of the roots should be more than enough at this stage."
ok so maybe I'm over watering. I had been giving my plants a gallon of nute water between them every 2-3 days​

What's the brand of your light and how far away from the tops of plants ? Don't stress out and don't think about removie any leaf. You gotta figure first how to grow to a harvest then think about all the types of training that can be done. Also next grow put somemore perlite small stones in that mix airiate it so it doesn't compact. You don't have nute burn.

I have a myhigrow 100w led lamp thats hanging a foot above my tallest plant. also you mentioned not removing leaves. I accidentally lost a leaf apex or two and each plant transplanting to larger pots. should I be worried about that?
Click to expand...
 
You can cut back on the amount of water back to a quart. Your coco is mostly staying wet because of little roots at this stage.

That light worries me. The claims on their website appear fanciful and I cannot find one independent review on the internet.
 
two-marked treehopper, Enchenopa binotata20230714_150752 E.jpg

Things are hopping


I found two of these on the outdoor plants today.​ Couldn't find much on cannabis related except that it causes damage to stems. Anyone have any wisdom to share? I also found some leaf hoppers. I was considering lady bugs if this keeps up. do they eat tree hoppers also?
 
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