Yellowing leaves week 9

[mrgrey]

Question about yellowing on one of my plants. This is my first grow ever, they are on week 9 today. Two of the plants (sour kush and afghan auto) seem to be doing great as far as leaf color goes, they are nice and green and are starting to flower nicely ( so I think). The Gorilla glue started flowering before the other two, but the leafs have been yellowing since about week 4-5. I've posted few pictures that show the yellowing shade on the plant that I'm concerned about.
Do you all know what it is I might be doing wrong? or is this normal for a auto flower to be have this much yellowing. Pictures below are all three plants only the gorilla glue is yellowing.
Im only doing micro and bloom at this point. Thanks ahead of time to everyone.

 

[Mañ'O'Green]

@mrgreyWelcome to AFNLooks like a potassium deficiency but need a little more information because it can be caused by different things. I will move this to the infirmary for more attention.

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: PH in the root zone. How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics! Turn off the grow lights.

✂ - - - - - - - - - - -
(copy and paste)-->

Problem:

Medium/grow method:

Feed: and supplements used:

water source:

PH in the root zone:

Strain/age:

light used:

Climate:

Additional info:

 

[mrgrey]

@mrgreyWelcome to AFNLooks like a potassium deficiency but need a little more information because it can be caused by different things. I will move this to the infirmary for more attention.

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: PH in the root zone. How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics! Turn off the grow lights.

✂ - - - - - - - - - - -
(copy and paste)-->

Hey @Mañ’OGeen , THANKS for the welcoming and the reply , very much appreciated !! I’m just learning how to navigate the site so hope I’m replying to your reply correctly. Below I filled out your diagnosis sheet. Thanks again for the help!

Problem: yellowing if the leafs,almost every leaf on the plant has some sort of yellow shade. This is only happening to 1 or the 3 plants. Posted pictures of the 3.

Medium/grow method: I’m using FoxFarm ocean forest pitting soul. Plants are in 5 gallon fabric pots pots

Feed: and supplements used: general hydroponics flora bloom, grow , micro and botanic are cal- mag plus ( picture attached)

water source: I’m using tap water and making ph read 6.0-6.5 during veg and now 5.5-6.1 during flower ( correct me if I’m using wrong ph levels)

PH in the root zone: 6.0-6.4

Strain/age: 9 weeks

light used: two 1000watt led lights , I have bloom and veg light both turned on. Doing 20/4 on the light schedule.

Climate: have a humidifier and dehumidifier keeping them 45-50 degrees

Additional info: I’ve attached picture of the feeding schedule I have been following. I’m currently only giving them micro and bloom.

Hey @Mañ’OGeen , THANKS for the welcoming and the reply , very much appreciated !! I’m just learning how to navigate the site so hope I’m replying to your reply correctly. Below I filled out your diagnosis sheet. Thanks again for the help!

Problem: yellowing if the leafs,almost every leaf on the plant has some sort of yellow shade. This is only happening to 1 or the 3 plants. Posted pictures of the 3.

Medium/grow method: I’m using FoxFarm ocean forest pitting soul. Plants are in 5 gallon fabric pots pots

Feed: and supplements used: general hydroponics flora bloom, grow , micro and botanic are cal- mag plus ( picture attached)

water source: I’m using tap water and making ph read 6.0-6.5 during veg and now 5.5-6.1 during flower ( correct me if I’m using wrong ph levels)

PH in the root zone: 6.0-6.4

Strain/age: 9 weeks

light used: two 1000watt led lights , I have bloom and veg light both turned on. Doing 20/4 on the light schedule.

Climate: have a humidifier and dehumidifier keeping them 45-50 degrees

Additional info: I’ve attached picture of the feeding schedule I have been following. I’m currently only giving them micro and bloom.

It is best not to answer inside of the quote most peeps miss it if you do.

 

[mrgrey]

I meant 45-50 humidity not degrees.

 

[Mañ'O'Green]

When you feed out of balance you can lock-out nutrients. By only feeding micro and bloom you may be out of balance. Learn about Liebig's Law of the Minimums to understand what I mean by balance. As you can see by this chart too much of something is as bad as not enough.

PH is good, Climate looks ok, so that leaves inputs. OF is in the infirmary a lot. Some peeps do just fine with it so I think it is a quality control problem. You need a little more P-K and magnesium.

In order to remain in balance in week 6 (your plant looks like week 6 to me) 3tsp Big Bloom, 2tsp Grow Big and 2 tsp Tiger Bloom per gallon of water. Add 1/2 tsp of Epsom salt just this one time.

Fertigate every 3rd time you water.

 

[mrgrey]

Hey @Mañ’OGeen, these are the only nutrients I have been using. Can you give me some advise what I should feed when using these. Should I add something else besides these. I’ll discontinue using only micro and bloom alone like you advised. I saw on a threat that last weeks only to use micro and bloom , is that wrong ?
Thanks