Looking for some input on a possible problem

[darkhaven8]

Problem: One of the two autoflowers that I am growing is showing some signs of distress see pics for description of problem

Medium/grow method: Growing in 14L of Promix BX

Feed: and supplements used: Advanced nutrients pH perfect grow, micro, bloom at 4mL/L; B52 at 2mL/L, voodoo juice at 2mL/L, sensi Cal-Mag 2mL/L

water source: dechlorinated tap water

Strain/age: crop king seeds early miss( bigbudxWW) autoflower 33 days old

light used: mars hydro LED 132 true watts x 2 ( 1 for each plant) 18/6 schedule 16" from top of plant

Climate: daytime temps range from 70-80F, night temps 60-65F

Additional info: 2 plants same type same conditions but only 1 showing the problem

 

[Rev. Green Genes]

Nice, I love it when folks use the format. They look like they either overfed or in hot soil to me. Due to the dark green newer leaves and the good light distance I would start there. It also is consistent with high pH, so if you have not checked on that it's worth the effort. I always check that first with any nutrient related issue, every time. It only confirms the correct way to fix a problem.

 

[STILLSMOKIN]

I second the burn. Need a whole plant pic to really diagnose. Also led is a calmag whore! I use everytime i water or feed. If i forget one time it's spotted.

 

[STILLSMOKIN]

Always nice to give them ro water from time to time with calmag only.

 

[darkhaven8]

I second the burn. Need a whole plant pic to really diagnose. Also led is a calmag whore! I use everytime i water or feed. If i forget one time it's spotted.

This is a pic from 2 days after the other pictures were taken

 

[darkhaven8]

Nice, I love it when folks use the format. They look like they either overfed or in hot soil to me. Due to the dark green newer leaves and the good light distance I would start there. It also is consistent with high pH, so if you have not checked on that it's worth the effort. I always check that first with any nutrient related issue, every time. It only confirms the correct way to fix a problem.

It may be hot soil because I use an electric heater and after doing some moving of things in my grow space I found my heater was way too close to that plant and its now back in its proper position. Also I'm unsure what my pH is because my meter is not cooperating but another is otw. Thanks for the help

 

[Waira]

.... watch her for a couple-few days and see if there symptom progression,... those were near bottom leaves, right? .... you may be a bit too rich on the feeds too, keep in mind the size of the plant vs. demand, and what cumulative inputs can do,.... hot soil didn't help!....

 

[darkhaven8]

.... watch her for a couple-few days and see if there symptom progression,... those were near bottom leaves, right? .... you may be a bit too rich on the feeds too, keep in mind the size of the plant vs. demand, and what cumulative inputs can do,.... hot soil didn't help!....

This is how she looks at day 42, also included pics of the plant that is growing next to it and being treated exactly the same. Gave them 80% of the feed strength that I normally give them 5 days ago

 

[Waira]

so, you still added more nutrients? it was too much already,.. I see K toxicity now, those burned margin 'teeth"..... Is the other plant the same strain? Different strain, different tolerances preferences,... and each pot, regardless, is it's own little ecosystem, so they may be treated the same, but what goes on in-pot isn't necessarily.. to many other influencing factors!,...

 

[darkhaven8]

so, you still added more nutrients? it was too much already,.. I see K toxicity now, those burned margin 'teeth"..... Is the other plant the same strain? Different strain, different tolerances preferences,... and each pot, regardless, is it's own little ecosystem, so they may be treated the same, but what goes on in-pot isn't necessarily.. to many other influencing factors!,...

I did add more nutes 7 days ago yup. Will skip the feed this time. I assume I continue with cal mag regardless??? They are the same strain yup both of early miss from crop king seeds