Possible Zinc issue?

[grgazzels]

Problem: Maybe a zinc deficiency

Medium/grow method: Soil: 50%FFOF, 25% CoCo 25% EW Castings

Feed: and supplements used: Fox Farms Trio

water source: House well water PH to 6.1-6.5

Strain/age: Mephisto HHBS Day 38

light used: 6 Autocobs by the Cob Shop

Climate: Indoors 75-81 degrees 40-55% RH

Additional info: Is day 38, on day 34 I had nute burn and did a full flush. Day 37 I noticed the deficiency and gave first bloom nutes from Fox Farms Trio at 50% of recommended per gallon of ph water. All 4 shared the gallon. Effecting 2 of 4 plants.

Extra pic of porn for taking the time to look and possibly help

 

[Joemac879]

Are you using cal mag?..


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[Joemac879]

Or any kind of cal mag nute?..


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[grgazzels]

Yes, on water days not when I used fox farm nutes. Had issues on day 12ish with cal mag

 

[namvet25]

Problem: Maybe a zinc deficiency

Medium/grow method: Soil: 50%FFOF, 25% CoCo 25% EW Castings

Feed: and supplements used: Fox Farms Trio

water source: House well water PH to 6.1-6.5

Strain/age: Mephisto HHBS Day 38

light used: 6 Autocobs by the Cob Shop

Climate: Indoors 75-81 degrees 40-55% RH

Additional info: Is day 38, on day 34 I had nute burn and did a full flush. Day 37 I noticed the deficiency and gave first bloom nutes from Fox Farms Trio at 50% of recommended per gallon of ph water. All 4 shared the gallon. Effecting 2 of 4 plants.

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Picture of zinc def but it's very uncommon to happen.You should use xtra cal/mag during flowering.
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Extra pic of porn for taking the time to look and possibly help
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[grgazzels]

@namvet25, extra cal/mag I can do, they need another watering tomorrow. ty

 

[Waira]

good call Gaz', I think this is likely Zn defc. too,.. it's an immobile nute element, meaning the plant can't translocate it from other tissues to support newer growth,... it might have locked out during that nute burn incident, or less likely, the soil has gone high pH... Zn and Fe can lock out fast over 7.0, but with your water that soft, seems unlikely,.. what Ca-Mg, and dosage? That too, overdone can cause issues,... My bet is it's a simple lack-of, and she can't get caught up from the feeds,.. treating immobile nute defc.'s can be a bitch, stubborn to correct... I recommend Earth Juice Microblast for both foliar and soil treatment... being in bloom hampers this some, we don't want to promote any mold, so foliar needs to be done right! You'll need a wetting agent too, like Coco-Wet or something,... this will help it coat an stick better; spray tops and bottoms of leaves,... out of direct light until dry,.. dry for sure by lights out,... it'll take a while to work,...only thing faster is using Optic Foliar's Transport with the micronute supplement-- this is the very best, I have done this a lot myself! Transport carries the nutes right into the leaf by making the surface temporarily permeable to them,...

 

[grgazzels]

@Waira I have been adding about 6-9 ml per gallon every watering excluding the feed of Fox Farms Trio. I added the cal/mag to the feeding today with FFT. I don't have a way to test the soil at this time but its on my list to get.
I was thinking it was from the flush. After the flush I did not feed or water for 3 days and that's when it started to show.
I will look at the earth juice microblast. Ill get pics from today here in a few.

 

[Heavily Medicated]

I think where you erred was the flushing. I don't know how bad of N tox you are talking about, but unless things are way out wack, flushing can cause more problems than it cures. I think this is an example of creating a problem while trying to solve a different one. You flushed out alot of the nutrients that were available in the medium during the flush. If and when a flush is called for, always go back in with a weak nutrient solution the last of the flush. Alot of times just going back in with pHed water alone for a feeding or two will correct minor N tox problems without washing out the entire medium.

 

[grgazzels]

Day 40 now
@Heavily Medicated @Waira
They have received two feedings of FFT at 50% and cal/mag twice, one full and 1 half since I noticed this. These are the other 2 feeds I use outside of FFT:

Plants today: