K deficiency?

Plants are day 50. This started showing up around week 6. All plants healthy and praying till then. Buds are very solid and healthy but.leaves starting to turn. Potassium?

A couple of the phenos show nearly no deficiency. But 4 of them are turning this way. First run of this strain. Trouble free grow up til now. Hope to fix this up for next run

Last pic, I'm not really sure, but if looks like bug damage, check under the leaves.

I’d be guessing P or Cal def…

Nixs said:

Last pic, I'm not really sure, but if looks like bug damage, check under the leaves.

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Definitely not bug damage. Zero bugs ive been very vigilant. Had mites and whitefly last grow, got rid of them and kept a close eye out for more.

Calcium, but not sure if toxicity or deficiency.Most likely pH ,or too much of something else is blocking it.Start with pH, too low at the roots?

pH is 6.5 measured by dropper test
Feed is
HG coco AB
Multizyme
Budxl
ToPshooter
Calmag
Mammoth P
Great white

@ec 1.8 in coco
Flushed wk 5 as per feed chart

Will flush again today and try maybe supp P or S

ketamine_disposal_unit said:

pH is 6.5 measured by dropper test
Feed is
HG coco AB
Multizyme
Budxl
ToPshooter
Calmag
Mammoth P
Great white

@ec 1.8 in coco
Flushed wk 5 as per feed chart

Will flush again today and try maybe supp P or S

Click to expand...

Yikes,thats a lot of extra shit.Id use just A B and calmag and drop all the others and see if it improvement.Too much pk is your problem.

ketamine_disposal_unit said:

Flushed wk 5 as per feed chart

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This explains the def. So you didn’t feed it for 7 days?

Can you post a link to the feed chart that shows this flush?

how much calmag are you adding?
I don’t think the great white or mammoth p are necessarily causing the issues.. but are you mixing salt based ferts with organics?

6.5 is kinda high ph wise for coco which could be a problem. you shouldnt be flushing plants in general its not needed its bro science. the only time u have to "flush" is when you nuke your soil with nutrients then get a instant burn showing. a low ec balanced feeding is powerful. highest ive been feeding is 1.6 - 1.8 ec.

Wattzzup said:

This explains the def. So you didn’t feed it for 7 days?

Can you post a link to the feed chart that shows this flush?

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I mean I flushed until runoff dropped back down them just refert as normal. Not flushed for a whole week. Its the H&G Classic feed chart

lakesidegrower said:

how much calmag are you adding?
I don’t think the great white or mammoth p are necessarily causing the issues.. but are you mixing salt based ferts with organics?

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Im adding 1mL/L recommended is 1.25mL/L

myke said:

Yikes,thats a lot of extra shit.Id use just A B and calmag and drop all the others and see if it improvement.Too much pk is your problem.

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This is an even lesser list than the Classic lineup. Ive ran this a cpl of times with no issue its about half what i used to use

ketamine_disposal_unit said:

I mean I flushed until runoff dropped back down them just refert as normal. Not flushed for a whole week. Its the H&G Classic feed chart

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R U feeding to runoff 1-2 times a day?

How are you mixing all of those nutrients? Your issue is definitely smelling like ph. Easiest definition of chemistry to remember is “the study of change.”
If you throw all those chemicals together before diluting or even using them in the same feeding can cause ph fluctuations or nutrient lockout

Ozark Outdoor beauty said:

How are you mixing all of those nutrients? Your issue is definitely smelling like ph. Easiest definition of chemistry to remember is “the study of change.”
If you throw all those chemicals together before diluting or even using them in the same feeding can cause ph fluctuations or nutrient lockout

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He stopped feeding them. Problem solved. My last cycle went 10 weeks. I'd have never made it to harvest if I stopped feeding halfway through. Flushing at week 5 is some of the worst garden advice I've ever heard. I run plain water for 3 days before I chop. Sometimes I see people post that they're "starting the 2 week flush" and I just shake my head. How does starving a plant in hydro produce a better quality flower? Food for thought.

You can flush to get overload/ excess out of medium then top flush off with reg feeding.

to get ph back into range can be another reason to flush.

Id guess ph is at the start of Op problems. Ec way to high nutes build up in soil throw off everything. 1.3 ec

also not digital ph reading so not positive actual ph iirc they said test strips. Edit: dropper test

6.0 ph 1.3 ec. I’d sell all the nutes but one general purpose nute and get a digital ph pen

water with 1.8 ec the plants only use 1.3 left with 0.5 ec in medium and put 1.8 on top now you have 2.3 ec. Do that a few times