fat banana auto day 26 i got these burns but they never get like crazy bad just the tips but i would like to fix before it decides to get bad. my ppm when watering is 725ish, my ph is usually about 6.3 also my light is at 60% ionframe evo4 from acinfinity i have it at about 25inches from top of plant. the photo with my settings are usually 80f 65humidity and 1.20vpd i have the plant on a 20/4 light cycle by all means any and all criticism and errors i need to correct are welcome plz and ty.
What nute line you using?
What medium are they in?
Most important question I have is what is the ph and tds of your runoff?
You are inputing a lil low, ph under 6.5.
.2 doesnt seem like alot but it can lead to some issue, in theory.
Aside from that I wanna wait to know more before I try and diagnose your plant
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Do you have a picture of the whole plant?
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Growing in foxfarm 70/30 coco im using jacks a and b i havent tested the runoff and so do i need to run ph of 6.5 or higher ??
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Imo ph 6.5 is sweet spot. But if your runoff is lower than that you wanna run it higher. If its higher run it lower.
Forgive me if im intruding on another conversation btw. Just figured id chime in since im here.
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I had this issue with my autos when i first started. I believe it went away when i used calmag and raised the lights. Im not sure which solved the issue but im 98% positive thats what solved my issue. Idk if it was the calmag though because it is pretty early to have that issue.
I havent used the ionframes but with your lights being as far away as they are i wouldnt think it would be that but that is the only thing i could think of.
I dont remember what tv character said it but once youve eliminated the impossible youre left with what is true. Or something like that. With that reasoning MY money is on raising your lights an inch or two should solve that issue.(with the limited iformation given thay is😉)
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all help is welcome i appreciate any info it helps me learn more.
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Thats how i looked at it too. Helped me grow a lot over just a few months.
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Just a few youtubers that have really helped me along the way
From seed to stoned
Mr. Canucks
Mr.grow it
420 scene
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You should always check your runoff. I like to keep a record that way when something is amiss I can look back to see when things started to go off course. Runoff will also tell you when to feed and how much nutrient is left in your soil. As well as a rough idea of what ph the rootzone is in.
Its fortunate you are using this “soil” because it isnt actually soil, its coco. Coco is like hydroponic in that it requires a lower ph. 5.8-6.3 so your good there as far as input.
My advice is to see if the problem persists. In the meantime collect and test your next runoff. Make sure of where your medium is at. Want the PH in range and you want the tds to be around 1000 ppm. Tag me if you wish.
It could be the light as suggested above but I would think you would see more then just the couple leaves. The whole top of your plants leaf tips would be burned out. Your light isnt exceptionally bright (1000 watts or something) so 24 inches seems good and 60% is where I set mine for veg, a lil higher even later in veg. I dont think thats your issue but feel free to raise a lil if you like not too much though.
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ty and yeah my ppm feeding has been at 725ish so it isnt even high so i was like totally lost ill check runoff when i can.
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Thats good for a feed, maybe even a lil low, but safe. Especially for an autoflower.
Your runoff tds though wanna be around 1000ppm during veg and 12-1400 during flower (higher once you get the hang of it all.) At work we drip feed into coco at like 3.1 ec which is around 1500ppm.
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so if i feed 725 does my runoff not hit 725 does it go higher or is it supposed to runoff and be the same and im looking for fluctuations ?
I was getting a ton of burnt tips on an outdoor auto. I had transplanted a soil ball into 100% coco. Turns out the pH was really high. Once I reduced, it cleared up and was just harvested.
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No. Runoff is a combination of whatever you have added and whatever is already/still in your medium. Nutrient content has a direct effect on ph.
No, specificly you are looking for 1) what the ph of your rootzone is. This affects nutrient uptake. Too high or low and the plant cant absorb nutrition, no matter how much is available. 2) current tds of medium which answers do I feed or not next input. If my ph is low (5.5ph for example) on last runoff my next input will be higher (6-6.5 for example) to adjust the soils ph. That make sense?
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Thank you for putting more input in so i dont mess anyones grow up. Still learning but trying to put what i may think it is incase i was on the nose.
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Sherlock Holmes my dear growmie…
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@Docnraq so i actually have a question for you. My plants went through an extea month of extended veg and the ppm reading is a large portion higher than what the nutrient guide recommends. The girls seem to be doing healthy and happy though. Should i flush or keep it going?
ah yeah i gotchya now i understand i water in a few days and ill come back to let you know.
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