Looks beautiful. Plenty of time to fill in
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Looking super clean 
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Hey all. Could you help me figure out whatās going on here?
Bag seed unknown strain week 3 of flower
Under a Mars Hydro ts1000 150watt maxed out 13ā from canopy.
Roots organic coco based medium
GH Kool Bloom @ 5ml/gal
FF cal-mag @ 5ml/gal (non feed days only)
Water is from the tap. Phād to 5.5-6.5. I allow it to fluctuate but mostly around 6.3. Tap water is 270ppm by itself.
Daytime temps are 70-75f, night 60-70f
RH 35-40
Runoff pH is 6.8ish (higher than Iād like, slowly getting lower)
Runoff tds is 1097ppm
Totally water/feed volume 1/2-3/4 gallon every 2 days.
So, Iām noticing most of my low leaf growth has begun to get splotchy yellowing. Not like when a fan leaf turns yellow and dies.
Mid level fans are starting to show rusty brown spots mid leaf
And lastly my tops appear to be very light green.
@kaptain3d @AfgVet @KoolHandLuke @kellydans @GreenFlex @Nicky @Not2SureYet @Hellraiser @beardless @Kilgoretrout
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Did you spill nute solution on those leaves at any time in the past two or three waterings?
I had a few of my leaves turn to bleach spots when I got sloppy when feeding. If itās only
a few select leaves, Iād keep an eye out for it spreading but on a handful of leaves I donāt
think itās time to panic.
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I wish that was my issue. I mix everything outside of the tent and purposely have no growth within 6ā of the top of the grow medium so itās easier to water. Most of the pictures are in the top 2/3 of the plant. Iām wondering if itās a combination of a calcium deficiency mixed with a medium pH issue being a little too high for too long.
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Thatās a beautiful plant ya have there friend! Iāll let the big dogs you got tagged in here handle the serious business Iām just here to admire your handiwork 
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Thank you. Iām trying my hardest to get a good quality smoke. My last harvest was decent but fluffy still. A light upgrade will be in the near future I do believe.
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Yeah I really really went back and forth on my light purchase. I went ācheapā with a knockoff quantum board. But cheaps a relative term lol. 450 SEEMED like a lot for a light. Until you harvest 30 zips and it seems like chump change. Iām so glad people here talked me out of my blurples and into some 301bs. My only regret is I didnāt just drop the 900. I love my light and get dense buds butā¦could they be better. It haunts me lol.
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What light are you working with now?
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Iād like to help you out but Iām not the best with these type of issues. What I do see is ph issues. You said you ph between 5.5 and 6.5. Thatās a huge variance. Not sure if roots organic is considered soil or non soil. If soil your ph should be between 6.5 and 7.0 with 6.8 being optimal (best I can remember with soil). If coco it should be between 5.8 and 6.2.
Iād say you need to get your ph figured out before proceeding.
I think you have a cal/mag issue but your ph being off may be causing a lock out.
Figure out what you ph should be and do a flush to get it where it needs to be.
@kaptain3d @Bulldognuts @imSICKkid anyone know anything about roots organic? Soil? Coco?
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I agree with you for the PH, but @imSICKkid would be better suited to answer this question since heās in cocoā¦ 
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Iām in coco, I just donāt know if roots organic is soil or coco
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That was my first thought as well.
I donāt know nothinā 'bout ph and stuffā¦ but if it was a Calcium deficiency, I think the signs would start on the lower leaves.
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Rust spots are calcium deficiency, itās common come flower in coco. This why you have to bump up calcium and always ensure your coco is pre buffed coco or youāll fight this and loose most often. Seems your coco is buffed or you would be having a bigger issue.
Also 5.5-6.1
Your PH range is to much and to high.
Your best bet is to flush a bit with phād cal mag water.
@Jake3 by the way great post it was really informative and let me diagnose the issue right awayš
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Thatās pretty much what I said, the question is, is root organic treated like coco or soil?
āRoots organic coco based mediumā.
Coco based?
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@AfgVet to be honest I was just trying to get all my tags answered before bed last night and on multiple posts I didnāt even look at anyoneās replyās lol. scrolling up , I agree with your reply and to my understanding it is a coco yes.
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I know thereās other products out there that are ācoco basedā that people donāt treat as coco. I use coco, straight coco, but coco based? Could be a big difference ph wise. I know thereās someone in here that uses it. I just canāt remember who
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I think Merlin is talking about their nute line. I just read the same.
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