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What if anything are you feeding and what type of medium are they growing in? Fabric or plastic pot? I think you may of solved part of the issues with raising the light but during flower you really want to keep the light at full brightness but for now if things start to look better just leave it at 80% and are you running lights 18/6 and do you lift the pots to tell if they are dry? Lots of questions for ya LOL. PS i love these lights with dimmers
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Help - upper leaf tips curling up, brown spots, some yellow between the veins, and some pistils turning brown.
First time growing indoors...last time was outdoors and almost 50 years ago. Yikes.
I live in the newly liberated state of Maryland and thought I would give it a try. My two plants, both fem and autoflower but different strains, were germinated on July 11 and planted on the 15th. They are planted in pots that are probably too small (2 gallons), using a potting mix. My light is Spider Farmer SF 2000 with a dimmer and which I like quite a bit. Growing in an open room with a fan blowing (not on the plants), temps in the low 70's, RH is about 60%. One plant is doing quite well and is sporting lots of young Colas. The other is doing okay and has the leaf/pistil problem.
I think it might be light burn on the one plant so I've lowered it further from the LEDs. Now it is about 20" instead of 14" and I've reduced the power to 80%. Ideas? Thanks in advance. Allen
Last edited by MDGrower; 08-29-2023, 04:30 PM.
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Originally posted by Shitil View PostLast edited by Shitil; 08-28-2023, 09:33 PM.
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Drooping leaves might point to over watering. Do your plants get a chance to dry out between watering? You said you flushed it twice... make sure it dries out between. Not having any N for a month would make me feel the plant would use up any nitrogen in the soil by now. PH should be about 6.5 for soil so check your run off water
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The lime will add cal at the root zone immediately which will go well with the epsom for mag as best to treat for both. You can maybe top dress with a light sprinkle which will bring the pH up immediately. I've only added it when making soil and not during a grow. I wouldn't use much just enough to adjust the pH going in into the zone.
Measuring runoff pH is so inaccurate if you use the results to make changes it will lead to bigger problems and deficiencies so go by what the plant is telling you. I'm using recycled recycled coco which is really stable now in a stable environment with stable feeding and getting wildly varying runoff results that are so far out of range if it were reflective of the pH at the roots my plants would be dead and not thriving.
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Thx Bluey that was my thought too.
Treating with Epsom salts.
I’m not sure the Dolomite lime will adjust the soil quick enough for these plants, even in powder form.
I’m going to add it to my next grows soil in advance and hope to keep my ph in the best zone. My water is a bit low at 6.2 6.3 I think it’s pulling it out of range.
Sure wish I could afford the blue lab PH soil meter, I’m not confident in slurry test results. Maybe some day if I save my pennys
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Hi all
can I get some suggestions/confirmation on peoples thoughts on my problem here with the one biggest plant . I have mine ,I’ll share after so as to not bias your input.
thx in advance , GWE community rocks!
These are outdoor , been a bit wet if anything, but good access to sun , generally healthy, about 5 weeks old, in “Kis” mix Black Swallow brand organic living soil. 15g fabric pots
temps have been in a good range 15 to 30 C
There appear to be no bug problems4 Photos
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Yeah that makes sense, the other cycles was pretty stable so I assumed it wasn't the issue but this last one the drop was significant so will definitely keep an eye on that
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Given its a hydro setup and pumped around check the pH daily and adjust to keep it 6 to 6.2. If it's dropping as it appears to be bring it up a tad further, say 6.3 and monitor it to make sure it does drop. Varying the pH in this range is more beneficial than not varying it.
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Double checked the PH and it was low this time around 5.30 so you all might be right. Also the nutrient absorption by PH chart shows some nutrients are better absorbed above 6 and I was keeping it pretty tight there. Adjusted to 6.20 to watch for a few days.
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Originally posted by Rwise View PostLooks like a PH issue from here, Leaf Septoria spots are round often with a pimple and a dark spot in the center (that would be the spore). So what PH are you running? Are those rocks coco? IF so were they treated/prepped before the grow?
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2 stones, I was having the issue since last water cycle, so it seems it is still here. Tested PH before and during the last cycle pretty stable around 6.
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