What am I doing wrong?

[Thiessen]

Growing side by side another very healthy plant. Some
Watering and feeding schedule.

Plant in picture didn’t have much air blowing on it for about a week. I have since fixed the airflow issue, but the plant doesn’t seem to be doing much better, if at all. Leaves are quite yellow in comparison to the other on.
I believe the strain is Durban poison.

 

[MEGA956]

Are you growing in soil?

 

[Pilted]

More info will be needed for people to be able to answer your concern. If you can post a few details like:

How old.

What are you feeding it and how much.

What type of soil.

What type of lights.

Temp humidity.

Any kind of details of events leading up to this that would be helpful. Low circulation I don't think would be a direct indication to the color of the leaves. (Might be wrong others will know better) but I am curious on your temps because to me (which please remember I'm fairly new to all this) it almost looks like it's in too cold of an environment. More.info about setup would be very helpful.

 

[Thiessen]

Maybe 2 months and a week
Soil Grown
5-5-5 NPK, recommended amount on bottle for area of soil. Twice a week
Feel pretty warm. 20-23 degrees Celsius depending on the day.

 

[GoodListener]

Hi, if you look on the backside of the leaves do you see very tiny black specs, I suspect spider mites?
If you are feeding with nitrogen, and its not green, you have a nutrient lock out from too high or low PH.
Its not from heat or airflow.

 

[Thiessen]

Are you growing in soil?

I am
20-23 degrees in tent
5-5-5 npk (twice a week)

 

[Thiessen]

Hi, if you look on the backside of the leaves do you see very tiny black specs, I suspect spider mites?
If you are feeding with nitrogen, and its not green, you have a nutrient lock out from too high or low PH.

No black specs

 

[GoodListener]

Do you ph?


I have ph 8 tap water, and it kills

 

[Thiessen]

More info will be needed for people to be able to answer your concern. If you can post a few details like:

How old.

What are you feeding it and how much.

What type of soil.

What type of lights.

Temp humidity.

Any kind of details of events leading up to this that would be helpful. Low circulation I don't think would be a direct indication to the color of the leaves. (Might be wrong others will know better) but I am curious on your temps because to me (which please remember I'm fairly new to all this) it almost looks like it's in too cold of an environment. More.info about setup would be very helpful.

Hi, if you look on the backside of the leaves do you see very tiny black specs, I suspect spider mites?
If you are feeding with nitrogen, and its not green, you have a nutrient lock out from too high or low PH.
Its not from heat or airflow.

Do you ph?

No, is that my next step?

 

[GoodListener]

Yes, it has made a world of huge difference in my world! I do 6.2 and GH PH down.

 

[Thiessen]

Do you ph?


I have ph 8 tap water, and it kills

Kills good or kills bad lol

 

[GoodListener]

kills plants bad. I had a fire OG and it was the most sensitive to ph. looked just like yours.

 

[GoodListener]

I have used cheap ph meters, and have gone without calibration solution and I have gone without storage solution. all are a waste of time. I think ph'ing is vital to our hobby, and is one very big secret. so many imbalances with nutrients is one of the biggest problems. PH in California is 8-8.5
The best ph pen is Blu labs. plus you have to use the calibration solutions and storage solution. and never let the tip dry out, which it wont because you will be ph'ing every day. Once you get that sorted you will find you don't have to use much nutrients at all to stay green.

 

[Captspaulding]

Nitrogen. Kelp.

Went to to top and read, scratch that earlier comment, what is your lights height? And specs?

 

[N1ghtL1ght]

Hi, what brand of soil is that and do you measure input EC after adding fertilizer? And how hard is your water? I assume you are using tapwater, don't you?