Can’t seem to figure this out.

Ok guys. My friends are growing a plant I have them. I use Athena nutrients and it works great. I had been feeding at half strength everyday multiple times a day and it got to be 4 feet tall in a red solo. So when they came to get their plant it was a monster already lol. I transplanted into a 3 gal with royal gold tupur and advised them to water once with their nutrients(fox farms) and let it dry out so the roots can stretch. Fast forward a couple weeks and we got roots out the bottom and plant seemed happy. Then we started getting what looked like a cal mag deficiency. So I had them add cal mag at 3ml/g and foliar feed at 5ml/g. A week later, problem is worse. Ph is 6.0 everywhere. Input and run off. We are feeding full strength so maybe it’s nutrient burn? I have never seen burn look like this. I wasn’t concerned until I saw the tips starting to dry up. Only a small fan in the room and the yellowing points to something other than wind burn. Light is a 150w Vivosun so it’s not light burn either. Any help is appreciated

Full strength feeds with a plant that small is never a good idea.
Calmag increases the EC as well

Looks like your over doing it. The tips burnt, you ignored that. The burning is just progressing, back of to half for a feed, then settle at ⅔ untill she's flipable

It looks more like a lockout than nutrient burn. Back off from full strength & it should recover. DON'T let coco dry out, it defeats the purpose of using coco as a medium.

PopAndSonGrows said:

It looks more like a lockout than nutrient burn. Back off from full strength & it should recover. DON'T let coco dry out, it defeats the purpose of using coco as a medium.

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When I say dry out I mean decent dry backs to encourage root growth. Not complete dry outs.

Boatguy said:

Full strength feeds with a plant that small is never a good idea.
Calmag increases the EC as well

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I will have them back off to half and see what happens but they plant is 4 feet tall and has filled out a 3 gal so it’s not that small at all. I am leaning towards lockout but ph seems fine so how could it be lockout. And tips just got burnt in the last day or two

ProPheT 216 said:

Looks like your over doing it. The tips burnt, you ignored that. The burning is just progressing, back of to half for a feed, then settle at ⅔ untill she's flipable

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Didn’t ignore the tips burning. I literally said I wasn’t concerned until I saw the tips burning……

Smokeman710 said:

When I say dry out I mean decent dry backs to encourage root growth. Not complete dry outs.

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Yeah, don't do that in coco.

Smokeman710 said:

When I say dry out I mean decent dry backs to encourage root growth. Not complete dry outs.

Click to expand...

You shouldnt confuse coco with soil. The more frequent the watering the better.
Give them a good flush with a lower strength feed. Calmag at the recommended dosage. 3ml/gallon seems high

You seriously have to think of coco coir as really just a bucket of water. It's hydroponics, on training wheels.

It just "looks" like dirt, but it isn't. It holds NO nutrients, it provides NOTHING to the plant other than something for roots to crawl through & be held (although coco CAN actually rob your plants of calcium and/or magnesium).