Your thoughts yellowing leaves

I made a thread when these were just two weeks old, now they are about 5 weeks old.

So a little info on this grow:

Temp from: 23 celsius to 27 celsius. Using a table fan.
Humidity: 40-60% (I use a humidifier)
Lights: 300 W CLF 20/4 schedule

So all this time from when they were two weeks old I've had problems with these, the strain is Northern Lights feminized. I wrote on the forum a thread but most people just told me I overwater and I "play with them to much" etc, I never got a real scientific explanation.

The soil I use is Gold Label Special mix and I ph down the water I give them to 5.8-6.3. I started feeding at start of week 3 and have been giving them constantly every watering (but much lower doses) to have a continuutity rather than do it every third watering.

My thoughts after all these weeks before I start my real grow (this was just experimental) is that i give to little N

The feed schedule i found for gold label special mix says to give equal amount of nutritient A and B, anyone have experience with this? I though tduring veg stage i give them more of the A wich has higher N, but B is equal to A here.


Here are also some pictures of the brown yelowing leaves that keep climbing higher and higher and quickly also.

I'm also willing to PAY someone if you can privatey help me with this problem, once problem is gone I pay you what we agreed on.

ph 6.3 is good. 5s are not for soil.
Are you ph ing your nute solution before feeding them?

Ringsixty said:

ph 6.3 is good. 5s are not for soil.
Are you ph ing your nute solution before feeding them?

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Yes I ph the nute as well. The soil manufacturer: Black Label claims on their website ph for the soil is best suited 5.8 but i could be wrong, either way the small amount should not affect the plants in this way or?

Well...looks like a mag deficiency on that lower leaf

Nuits. Burn to much nuits. Some soil is packed with micro nutrients and you can just give em plain water ph to 6.3 - 6.8 for the first month then start off with 1/4 strength up till your at full strength.

Steelerdrew79 said:

Nuits. Burn to much nuits. Some soil is packed with micro nutrients and you can just give em plain water ph to 6.3 - 6.8 for the first month then start off with 1/4 strength up till your at full strength.

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Problem was there before I started feeding, at beginning of week 3 prior to me starting to feed them, Impossible for it to be nutes.

Some soil is packed with micro nutrients dude like fox farm ocean forest its really hot. Great soil but hot even the company will tell u that I've never seen it in my grows but I've heard of some people I know getting nutrient burn just from the soil alone I always cut mine with an organic mix and then I still don't give them nutrients for about 2 watering sometimes 3 may not be your case but it is a possibility

Steelerdrew79 said:

Some soil is packed with micro nutrients dude like fox farm ocean forest its really hot. Great soil but hot even the company will tell u that I've never seen it in my grows but I've heard of some people I know getting nutrient burn just from the soil alone I always cut mine with an organic mix and then I still don't give them nutrients for about 2 watering sometimes 3 may not be your case but it is a possibility

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Thanks for your input, I really doubt it's related to to hot soil. The deficiency keeps moving up... I'm really worried this will keep up on my new grow as well.. Any advice from anyone what to test and how to test is apriciated.

That soil already has enough to feed those plants for a few weeks.

The reason you use both A and B of those nutes is because it's a two part nutrient used from beginning to end. It comes in two separate bottles because some things don't play well together and you end up with chalk and other substances when combining them in concentration.

PH to 6.5 after mixing your nutes. 5.8 - 6.3 is too low. And yes it does matter.

That's not an N deficiency NewSun. It's too early in the growth stage for that with the soil you're using.
Man, it could be a lot of things. Since it started in lower leaves it could be a mobile nutrient.
Try 1/2 strength Calmag in your waterings. Watch your PH as suggested.

I've used Recharge to fix an unknown issue or five.

Newsun123 said:

Thanks for your input, I really doubt it's related to to hot soil. The deficiency keeps moving up... I'm really worried this will keep up on my new grow as well.. Any advice from anyone what to test and how to test is apriciated.

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Hey. You PM'd me for help. Is this the correct thread?

5.8-6.3 is too low for soil, adjust your pH to 6.5, also I don't know anything about your soil except what I could see at their website, but I wouldn't be feeding them yet or at least a very dilute solution for now, I would feed straight pH 6.5 water for a few feedings and see if looked better
-good luck!