Looking for suggestions

[MR Skunky Haze]

Just thinking the salts wouldn't be filtered out going thru the tank, just adding the fish waste... the last part would be pretty good.

Well I dosed with calmag with 6ml per gallon and wow 2 days later everyone looks so much better. I honestly think this was my fuck up assuming I had enough mag and fe in my soil. I do think calcium was covered through tap but lacking other minerals.
I'm going to continue with this the next few waterings and post my results

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[MR Skunky Haze]

Updated. Well used distilled water and cal mag plus URB as well as SLF 100 as I heard this would help with build up in the soil too. I'm not sure if I'm looking at a iron deficiency or something with my PH. I ph down to 6.2 this watering and run off was about 6.5 it does seem the be getting slightly better on some plants and then much worse on others.

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[MR Skunky Haze]

Is it possible I'm bleaching the plants with too strong of LEDs? I was looking into light burns and saw a lot of similarities like the tiny burnts tips on most of the leaves

My QB288 V2s are at 18inch above the canopy. Should i start going higher with it?

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[MR Skunky Haze]

I flushed today with 6.2 Ph distilled water and added URB at 15ml a gallon. My run off afterwards was roughly 7.2 or so. I'm definitely getting lower but still 7.2 is high for soil. I've been adding SLF 100 to help break things down in the soil. The Northernlights is getting some green back but things are still pretty yellow. I've also raised all my lights as high as I possibly can for the time being.

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[MR Skunky Haze]

I'm pretty sure given what research I've done. That my ph in the soil is above 7.0. My meter early today when I mixed soil sample and distilled water the reading was a good 7.4 so I'm almost positive my soil Ph is too high causing an Fe lock out. And those the yellowing of the leaves. But otherwise healthy looking plant. I'm hoping if I continue to flush every week and then feed them at 6.0 with URb mammothP and calmag theyll bounce back. But I need to get my errors ironed out for the next grow. This was discouraging to say the least. Figured autoflowers would be easier than photos.

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[MR Skunky Haze]

Wow sorry I havent posted this. I just saw that you guys have a format here to follow my apologies

Problem: Yellowing in leaves with direct light exposure. Stems slightly purple

Medium/grow method: total harvest control organic soil mixed with cococoir and perlite thought it would be too thick for the autos.

Feed: and supplements used: as of now URB at 15ml per gallon. mammothP .6 ml per gallon. Calmag every other watering 6ml per gallon. Slf100 once a week full strength.

water source: I was using tap water. Now using distilled water PHd to 6.2-6.3

Strain/age: Northernlights Auto WhiteWidow Auto from Seedsmanseeds

light used: 3x HLG Qb288 V2. Height is roughly 24" from canopy at this point it was only 16" - 18" at one point

Climate: 75-80 Rh below 45% never lower than 30% sometimes it does drift lower in cold days here.

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[MR Skunky Haze]

Bump anyone else have further input? Been seeing some more green since I phd down to 5.8-6.0 and finally got a run off of 6.8. Calmag every watering now

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[rick-j]

Is it possible I'm bleaching the plants with too strong of LEDs? I was looking into light burns and saw a lot of similarities like the tiny burnts tips on most of the leaves

My QB288 V2s are at 18inch above the canopy. Should i start going higher with it?

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Yes, I am slowly finding out that those LED'S are powerful, I would go at least 6",

 

[MR Skunky Haze]

Yes, I am slowly finding out that those LED'S are powerful, I would go at least 6",

Did you mean 16"?

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[Waira]

looks like some long term water issues, Na is toxic at low levels as you're learned! it screw with the uptake of Ca, K and Mg.... The in-pot pH is borderline, too alkaline, Zn and Fe start to lock out at about 6.8, and with the tops yellowing/zebra striping (Zn defc.) like this, that's part of what's happening,... top to bottom yellowing is also a sign of S defc., but at this advanced stage, it's hard to call what's what,.. I'd look into a micronutrient supplement like Earth Juice Microblast,.... get a soil pH probe for direct measurements, the Accurate 8 is a good unit for this....
URB,.... we need more info on that, no idea there,.. NPK#'s, dosage frequency,.... minor P defc. also causes yellowing followed by larger necrotic patches and spotting...