Nutrient Deficiency? First time grow - LA Confidential Fem

Nutrients
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Hello all, this is my first go, and so far things have been going pretty well. Wondering what is going wrong that is causing these large fan leaves to turn yellow like this, thinking it is a nutrient deficiency. In the same 4x4 tent under 500w LED with three other plants, this is the only one of the four doing this.

Top dressed with gaia green 8-8-8 on 9/21/2023 and just watered yesterday. Things looked good yesterday, today this is what I am seeing.

Any advice on what is going on and how to remedy this would be much appreciated. Thanks.

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Howdy
Looks like magnesium, what is your pH going in? :thinking:

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@Hashtonbutcher This round was at 6.38.

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I have something going on with one of mine, if anyone could point me in the right direction

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@DieselGRWR @ChittyChittyBangin
What do you reckon :thinking:
See pictures above :grinning:

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I agree looks like mid stage magnesium deficiency

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Looks like a calcium deficiency

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excess of phosphorus or potassium with immobile nutrients maybe zinc

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Thay looks more like manganese. Its in the new growth also. Magnesium starts in the older leaves where manganese will present in new growth @Hashtonbutcher @BORN2GROW

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@ChittyChittyBangin
This one magnesium?
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This one manganese?
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@Hashtonbutcher the second is manganese, the first one i would check ph and ppms. Could also be overwaterings, but need to check ph of medium forst

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Potassium def?

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I agree with @ChittyChittyBangin on the 1st pic.

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1st pic resembles a magnesium deficiency, add a 1/2 teaspoon of epson salt to your feeding routine.

2nd pic looks like a potassium deficiency, what nutrients are you feeding and the run off PH and PPMs. Deficiencies are often pH related :love_you_gesture:

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@Hashtonbutcher @DieselGRWR @ChittyChittyBangin @Smokesdaily @eddi8

Thank you all for your insights. After reading all of your comments, I am thinking I will make sure the water is PH’d right at 6.5 like they are used to, was at 6.38 this time and thought that would be alright. I also watered at 3 days rather than 4 days this time, so that may have played into it. I will water on the fourth day again at 6.5 ph to remove those variables and see if that helps course correct.

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6.3 will effect the potassium uptake. You’ll want to bump closer to 6.7

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@BORN2GROW

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In soil seedlings 6.2… veg 6.3…late veg and bloom 6.5. flush 1st week 6.5 2nd 7.0 ph.

the 1st pic is definitely magnesium
2nd thats had a real hard time.

you will.have to transplant into a bigger pot twice the size of the 1 its in.

warm the soil and set ph 6.7 to start with. use a light mix and go from there good look to you and the :potted_plant:

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Do you know the run off PH :love_you_gesture:

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Here are the business ends of these.

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I agree the first look like magnesium. Easily fixed by adding 1/4tsp per gallon of plain epsom salt. Second one looks like you have mites.

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