Yellowing leaves - og kush auto and cheese by dinafem

hi to everyone,
this is my first grow and first topic here and thanks to the admin for accepting me.
My problem: i have searched through the lot of forums for related issue and i received different answers but i didnt resolve anything
The leaves on this plant started to yellow at the end second week of vegetation before i transplanted it.
Here’s information about the plant:
og kush auto (dinafem) :

18 days old plant
box: 23" x 19"- x 62"
light: dual spectrum cfl 300w
distance from light 5"
induct fan 183 cubic cm per hour
passive intake airflow 11" x 11"
plant height 6"
soil & temp: i posted a photos
watering twice a week, when cup is light or soil well dried

on the second plant cheese by dinafem

i notice that lower leaves also started yellowing too but this plant seems growing better.

Plants are in the same box.

i have alga grow by PLAGRON nutrient but now im afraid to give them anything
Any advice?

i know that this question has been asked many times but maybe you can help me
I thank you in advance for every answer and sorry if I made a mistake asking this

thanks a lot

Welcome to Ilgm! @Ivan2309

Let’s have you fill out a support ticket to make sure we get all the info!

COPY/PASTE: This “Support Ticket” into your forum post.
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so = NA

Strain; Type, Bag seed, ILGM… name of strain:

Age from Sprout:

Soil in pots, Hydroponic, or Coco / Brand and type of Soil & Size of Pots:

How often do you water and how do you determine when to do so?

PH of water and runoff or solution in reservoir:

What is strength of nutrient mix? EC, or TDS:

Indoor or Outdoor:

Light system, size and height from plants:

Temps; Day, Night:

Humidity; Day, Night:

Ventilation system; Yes, No, Size:

AC, Humidifier, De-humidifier:

Co2; Yes, No:

Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but short, to the point questions and facts will help us help you

Also here is a Deficiencies & Excesses Chart to help you identify what is wrong with your plants

ph and tds meters

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Strain: cheese by dinafem & og auto kush bz dinafem

Age from Sprout: 18 day

Soil : janeco light mix by ATAMI: NPK:12/14/24

How often do you water and how do you determine when to do so?
Twice a week: when i see that soil is about 2" dried

PH of water: 6ph: i have ghe test kit, a drops sistem

conductivity: 45ms/m

nutrient : alga grow by plagron

Light system: 300W cfl dual-spectrum and 5" from light

Temps; Day: 25celsius Night:21Celsius

Humidity; 70%

nutrient: alga grow by plagron: Ec i dont know, is 100% bio

Ventilation system; Yes

Humidifier: Yes
Co2: No:

Also, by what means do you determine your ph?

A soil les mix sounds like? Can you check the ingredients of that mix for me?

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thanks for replay

soil ingredients

i have GHE test kit to check water PH, a drops sistem or color sistem

I didnt feed them with any nutrient at all, only water

I never checked soil ph, how to do that?

So what you have there is a soil less mix with fertilizer

If you look at the left side of the pH chart for soil less. A pH of 6 doesn’t allow absorption of nutrients such as calcium and manganes

Several ways to check soil pH. 2 cups of 6.5 pH water add a spoonful of your mix and then check the pH. Or when you water let some run out the bottom and collect it and test it.

Look those up on the excesses and defficiencies chart and let’s see if those look familiar.

I can’t stress enough how important proper pH is. You’d have less headache if you bought a digital meter

Also your soil mix contains fertilizer already so your are actually giving nutes.

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thanks bob31
so, i need to adjust soil ph and add some cal/mag additive, right?

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If you dial in your pH you may not need the cal-mag but the cal-mag would help till you get the pH nailed.

I’d recommend doing the mix into water pH test to see if you don’t show it bring 5.8 ish right out of the bag.

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ok, thank you very much

Looks like @bob31 has you going in the right direction. Welcome to ILGM!! Don’t hesitate to ask questions thats what we are all here for. I’ve found this is the best forumn for advice on growing cannabis, many experienced growers here to help guide you through. They will have you on the right track in no time.

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@Ivan2309 keep me posted on how you’re doing!

Welcome @Ivan2309 @bob31 seems to have you covered but definitely get that ph up I wouldn’t add anything except ph water until you get soil ph up to at least 6.5
6 is low and will lock out nute up take
If your in soil if coco your high

And brother I’m glad you joined here at ilgm. Growing MJ is almost as good as consuming it. If you need help just throw @ in front of any username and it tags us back to your post.


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great…thanks for wellcoming me!

I will certainly continue to write and inform you!
I also think ph is a problem and i already did as you told me.
I did not drop down ph of water but I just added alga grow so much that ph drops about 6
I definitely have to buy a digital ph tester

@bob31 @Countryboyjvd1971


You should get one asap it almost as important as having seeds lmao
Ph is the most important thing to watch imo
So many issues start with improper ph levels
In soil 6.5 is the sweet spot but anything in between 6.3-6.8 is acceptable
I try to stay at 6.5- 6.7 my self
Happy growing and tag us should you need anything bro :v::cowboy_hat_face: CB


Sounds good @Ivan2309 I’m gonna echo what @Countryboyjvd1971 said. pH is so important!

Keep us posted!


Do you have some kind of effect on your camera? The pics look kinda wired lol, can’t really tell what the plants look like.

Sorry about the picture, i took those photos with my phone!

auto og-kush


After bob31 and Countryboyjvd1971 consulting me about ph problem, things already go much better after I set ph to 6.
The yellowed leaves began to be greener, plants are healthier, especially auto og-kush i had a problem with: yellowing leaves
@bob31 @Countryboyjvd1971 @Tonyb

thanks guys!!!


Hello Bob I there a place I can buy that top Nutrittion Deficience chart in a laminated chart? or a higher definition to download? thanks.

@Driftboat you may want to tag a member when your askingg a question it the only way we really know when someone looking for us
Just a FYI
Just put the @ symbol in front of screen name
Example @bob31 now he Will know lol
Welcome and happy growing :v::cowboy_hat_face:CB