I’m afraid I’m gonna lose her

Hello everyone,
I have a problem with a plant and I’m a little stumped.
I’m growing 3 photos from seed. 2 of the 3 are doing fine but # 3 is fading fast.
They were all in BAS 3.0, 1 gal pots….then I transplanted to 5gal pots about 5 weeks ago. The 2 that are fine went into BAS light that was amended with Craft Blend & EWC. But I ran out of BAS, so I put #3 into Roots Organic Original….I didn’t amend it as it’s pretty charged out of the bag.
For the first 2-3 weeks #3 was looking the best. She grew bigger and bushier than the other 2.
Then about 2 weeks ago, I noticed that the new growth was lighter colored than normal and the leaves were not darkening up as they grew.
I did nothing for a week or so and it got worse.
The lower older leaves were fine, but the yellowing was spreading down the plant. Also, I’m seeing some yellowing and spotting on the older leaves.
About a week ago I decided to top dress with EWC and Craft Blend. Since then she’s not really drinking as much as she should….i haven’t watered for 4 days. And she really hasn’t grown anything new. I initially thought it looked like an iron def. So, I did a slurry test today and it was 7.1. It needs watering tomorrow, so I’ve been brewing some Terp Tea w/ molasses and EWC. Whatta U think?? The pics are from today. Obviously she’s the light one in the middle. Thanks for the help….

I had a similar problem and solved it with blood meal.

Does anyone have any ideas on what the issue may be?
I watered this Morn with some Terp tea & EWC……I’m figured if my PH was indeed high, I’d adjust my input accordingly, so I took it down to 6.0. I can’t remember the last time I checked the ph of the soil or runoff….i rarely have these types of problems.
Anyway, I watered until there was a little runoff and checked it….6.75-6.8…..but coming down from the low 7’s, which is where it was the last time.
Am I on the right track? Aside from the top/new leaves yellowing, it’s basically stopped growing and stems are more rigid & brittle.
I can def rule out over watering and light burn…..beyond that I need your help.
many thanks guys

EWC and Craft Blend provide a lot, obviously, but I still think that plant wants more N.

What your describing is a classic case of stunted growth, probably caused by a swing in ph down. I would let the soil dry out, and hit it with a strong dose of N on the next watering. You could try foilar feeding to help it take in more N.

Im quite serious about solving an identical issue with blood meal.

Bullmark said:

Does anyone have any ideas on what the issue may be?
I watered this Morn with some Terp tea & EWC……I’m figured if my PH was indeed high, I’d adjust my input accordingly, so I took it down to 6.0. I can’t remember the last time I checked the ph of the soil or runoff….i rarely have these types of problems.
Anyway, I watered until there was a little runoff and checked it….6.75-6.8…..but coming down from the low 7’s, which is where it was the last time.
Am I on the right track? Aside from the top/new leaves yellowing, it’s basically stopped growing and stems are more rigid & brittle.
I can def rule out over watering and light burn…..beyond that I need your help.
many thanks guys

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what is the light intensity at the top of the canopy?

it looks like a nutrient deficiency. I would feed her slightly more and see how you get on.

Have you lifted the pot just to rule out overwatering? She nice and light before feeding?

Bullmark said:

Does anyone have any ideas on what the issue may be?
I watered this Morn with some Terp tea & EWC……I’m figured if my PH was indeed high, I’d adjust my input accordingly, so I took it down to 6.0. I can’t remember the last time I checked the ph of the soil or runoff….i rarely have these types of problems.
Anyway, I watered until there was a little runoff and checked it….6.75-6.8…..but coming down from the low 7’s, which is where it was the last time.
Am I on the right track? Aside from the top/new leaves yellowing, it’s basically stopped growing and stems are more rigid & brittle.
I can def rule out over watering and light burn…..beyond that I need your help.
many thanks guys

Click to expand...

I personally wouldn't bother messing with the pH of the soil at this point. If you have organics and microbial life the should balance the pH for you. As @Farmer's Hat said I would foliage spray and or give it some quick readily available. Nitrogen.

I have had similar issues in Roots Organic. I did a foliage spray of worm, poop and kelp tea. Twice a week until the roots healed up a bit. I think it was caused by lack of oxygen.

I noticed with Roots organic soil that the pot was feeling light but when I dip my finger in and it was still moist pretty deep down. I solved this my next run by adding Rice hulls in the soil to let the roots breath better.

Hope that helps. Not sure I'm right, but that's what I'd probably do.

Some good advice going on I'm going to say feed her N and see what happens hopefully you get her right as rain

Farmer's Hat said:

EWC and Craft Blend provide a lot, obviously, but I still think that plant wants more N.

What your describing is a classic case of stunted growth, probably caused by a swing in ph down. I would let the soil dry out, and hit it with a strong dose of N on the next watering. You could try foilar feeding to help it take in more N.

Im quite serious about solving an identical issue with blood meal.

Click to expand...

I really appreciate you and everyone else jumping in trying to help.
It’s always been my understanding that N is a mobile nutrient, so any deficiency would show itself on older leaves first. This problem has been the opposite, with the new growth and younger &smaller leaves being affected.
My troubleshooting pointed towards an iron deficiency, which is often caused by the ph being too high. And sure enough when I did a slurry test, it came back 7.1-7.2.
Now there are some minor issues popping up on the larger/older bottom leaves.
I’m sure it’s not over watering as I let the pots get really light before watering. And I’ve even backed off my lights.
I was gonna foliar feed something tonight, just not sure what. I have kelp meal and worm castings.
Should I just put the worm castings in some sort of a filter? And is it ok to mix up the liquid and spray it the same night? Just making sure it doesn’t need to be bubbled.
I swear today it may actually look like it’s stopped getting worse. I sure hope so.
I’ve probably had 50-60 indoor grows without a hiccup before this.
thanks again.

dwc420letsgo said:

what is the light intensity at the top of the canopy?

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Initially it was around 635ppfd…….and for the first 2-3 of them being in the larger pot, this plant was looking better than the other 2….it was the largest and growing the fastest. But once I noticed the tops being a little lighter shade than normal I raised the light a bit. Currently they’re getting around 500ppfd.
I was planning on flipping to flower over a week ago but postponed it until this one gets back on track.
If she doesn’t improve, I was thinking of only flowering the other 2, moving them into a bigger pot and letting them veg another 2 weeks.
The most I’ve gotten out of that space as far as yield goes is 17oz (dried & manicured) off 3 plants. But I’ve gotten close to that with only 2 plants……and once I ended up with only one plant and got 11oz from her. So it’s not the end of the world if this problem plant has to go.

From what I have been reading on your post, your soil has ran out of nutrient supply and you need to add more nutrients to your soil to fix the issue

Fish scale said:

From what I have been reading on your post, your soil has ran out of nutrient supply and you need to add more nutrients to your soil to fix the issue

Click to expand...

Yes I tend to agree….i top dressed a week ago and gave the plant some Terp Tea yesterday.
I hope things kick in soon…..or I’ll be pulling the plant and going into flower with the other 2.
thanks for chiming in.