Chasing Issues

Been chasing issues on some clones for the last month. I admit the clones were stressed when first taken, then went ok, not so much now! Never had this problem before on any of my grows.
Growing in Promix
Jacks 321 @ 500ppm and 6.2ph
Temp at 78f rh 54%

Plant pics

It helps

I think you're supposed to use Epsom salts with jacks. Not sure Lotsa guys on here use it though somebody will chime in. Looks like a magnesium problem compounding other things.

Capn-Crunch said:

Been chasing issues on some clones for the last month. I admit the clones were stressed when first taken, then went ok, not so much now! Never had this problem before on any of my grows.
Growing in Promix
Jacks 321 @ 500ppm and 6.2ph
Temp at 78f rh 54%

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Up your PPMs, 500ppm's of Jacks is to low.

What is your feeding schedule like? Do you feed every time, do you feed to runoff? etc

What's this speckled looking stuff in these areas? Pictures of the whole plant would help figure it out too. Where'd the clones come from?

I ran into something similar in veg. I upped to full strength, 2.0 with Jacks 321 and RO water, 84F temps, 55-60 humidity, but with an LED light. Had to reduce once i switched to flower though to 1.2 to 1.5.

Need more info and im sure more experienced users will chime in. Light source?

Also, pic of whole plant as others have said will help.

Jjgrow420 said:

I think you're supposed to use Epsom salts with jacks. Not sure Lotsa guys on here use it though somebody will chime in. Looks like a magnesium problem compounding other things.

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I use 1.2gm of Epsom per gal

BlazeHoliday said:

Up your PPMs, 500ppm's of Jacks is to low.

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I was feeding 1100ppm, lowered it when runoff hit 1200ppm

Killaki said:

What's this speckled looking stuff in these areas? Pictures of the whole plant would help figure it out too. Where'd the clones come from?

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My clones from 2 mother plants, sunset sherbert and hella jelly. The clones have had a tough life, lol

Rurumo said:

What is your feeding schedule like? Do you feed every time, do you feed to runoff? etc

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Feed to runoff every 6 or 7 days

Some whole plant pictures for those that suggested it

You mentioned you hadn't had any of these issues before. Did you change anything?

Mr. Bakerton said:

You mentioned you hadn't had any of these issues before. Did you change anything?

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Changed nothing at all. That's why I'm completely at a loss and need some help.

Capn-Crunch said:

Changed nothing at all. That's why I'm completely at a loss and need some help.

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Bad bale of pro-mix? they look locked out.

thumper60 said:

Bad bale of pro-mix? they look locked out.

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Possibly could be? I have some tomatoes, peppers, and squash growing in another tent and they don't look very good either.
I'm also looking into maybe a PH issue caused by faulty readings from my PH tester.
The tester I normally use might have been reading wrong because when I compared the reading using a 7.0 solution it was
reading .9 high so my 6.2 target might have actually been way under 5.5, too acidic?
Will try a different tester and see what I get for readings.

Runoff was 6.7 so don't think it's too acidic, lol
Maybe low P and Manganese uptake from too high PH?