I can not figure this out. Top leaves keep going yellowish and dropping.

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Seshlife

Seshlife

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Gmo in soil/ perlite mix. They were doing amazing. The. I looked at them the day after and they weren’t as perky or lush. They look yellowish on top now. Ph in is usually 6.3-6.7. Just did a slurry test and it came back at 7 so I think that means it’s too high and is it 7.5? Please help. Using crop control nutrients but have only fed at 500ppm. Soil was 500 ppm when I checked today. They look okay but they seem to be going down hill. Any help?
 
I can not figure this out top leaves keep going yellowish and dropping
I can not figure this out top leaves keep going yellowish and dropping 2
Seshlife

Seshlife

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Lower your pH range raise your PPM....start there.....but more details would be helpful for full diagnosis...gl
FOE20
Dude! Thank you for responding. I think my ph is drifting up so that would make sense. Should I feed with 6 ph? And do you see any deficiencies or do you think it’s uptake related from ph? My ph of soil was 7.5.
 
FOE20

FOE20

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Dude! Thank you for responding. I think my ph is drifting up so that would make sense. Should I feed with 6 ph? And do you see any deficiencies or do you think it’s uptake related from ph? My ph of soil was 7.5.
Your pH range is limiting N uptake....Try 6 to start...If it drifts to high to fast start lower...I pref 5.8 drift to 6.2 in veg....PK is more avail at those higher pH ranges so def stay out of High 6.5-7.0 range till mid Bloom and beyond...That size of plant I'd not worry to much about PPM....Darken her up abit more before Flower...push her a bit even....800-1000ppm @6.0.....Im only guessing but trust Im a pretty good guesser... ; )
gl buddy
FOE20
 
Seshlife

Seshlife

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Your pH range is limiting N uptake....Try 6 to start...If it drifts to high to fast start lower...I pref 5.8 drift to 6.2 in veg....PK is more avail at those higher pH ranges so def stay out of High 6.5-7.0 range till mid Bloom and beyond...That size of plant I'd not worry to much about PPM....Darken her up abit more before Flower...push her a bit even....800-1000ppm @6.0.....Im only guessing but trust Im a pretty good guesser... ; )
gl buddy
FOE20
Best advice I’ve had in here yet. Thank you brotha!
 
ComfortablyNumb

ComfortablyNumb

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Because of your medium, you need to keep your pH in the 5.8 - 6.2 range just as @FOE20 said.
Also, are you watering to runoff? If you are, what are your ppms in and out?

Tell me about your light and how far above the canopy it is plz.
 
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Nectarivorous

Nectarivorous

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Because of your medium, you need to keep your pH in the 5.8 - 6.2 range just as @FOE20 said.
Also, are you watering to runoff? If you are, what are your ppms in and out?

Tell me about your light and how far above the canopy it is plz.
I would suggest a good prune would help things too, can't be good transpiration going on under there. Can see the leaves at the bottom are drooping already which only further inhibits good air flow. Not suggesting it's the solution to the problem but it'll sure help.
 
ComfortablyNumb

ComfortablyNumb

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Lets have a side view so we can tell how full it really is.
 
ComfortablyNumb

ComfortablyNumb

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Still need the light info.
You said it is the top leaves that are turning. It's something up top, not feed, pH or soil. pH could be related, but it's extremely unlikely in this case.
Also, lets have some close ups of the leaves and their undersides.
 
Seshlife

Seshlife

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Lets have a side view so we can tell how full it really is.
They are getting worse. What the fuck!? I have 600watts of led in there right now. Mars hydro. I think I’m over watering too. It takes like 3 days for pots to dry up good enough. Now I’m seeing patches of light tan on leaves.
 
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Nectarivorous

Nectarivorous

708
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They are getting worse. What the fuck!? I have 600watts of led in there right now. Mars hydro. I think I’m over watering too. It takes like 3 days for pots to dry up good enough. Now I’m seeing patches of light tan on leaves.
Not enough info on the lights yet bro. I also run 600w of Mars Hydro so gave an idea of what they throw out. What height/setting are you using?
 
Seshlife

Seshlife

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Not enough info on the lights yet bro. I also run 600w of Mars Hydro so gave an idea of what they throw out. What height/setting are you u
Not enough info on the lights yet bro. I also run 600w of Mars Hydro so gave an idea of what they throw out. What height/setting are you using?
Could this be from overwatering and high Ph? I gave them 6.0 water at 150ppm yesterday. But now lights are going off so they’re droopy
 
growsince79

growsince79

9,065
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Could this be from overwatering and high Ph? I gave them 6.0 water at 150ppm yesterday. But now lights are going off so they’re droopy
How bright is the light in LUX? How big are the containers? How much and how often do you water.
 
Seshlife

Seshlife

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18
need more stats if you want real help

temps rh levels, strain, ..what are you growing in...etc
Temps are right at 78/79. Rh is at 65. This is Larry from bolochastan. I’m using natures care “organic” soil. In 3 gallon pots.
 

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