Yellowing leaves..and from new sprouts on?

I have 3 plants out of my 6 that have been yellowing for about a week now... At first I wasnt too concerned as 2 of them are my seed carriers and have lots of seeds but one of my smaller female plants is doing the same thing... So now I guess my question.. Is is nutrient lock/ ph in the soil/ or just starving.. Looks starving to me but I am new to this with a medical card and would definitely like some advice before I screw up a good plant.
They are in week 7 flower they did get stretched for sure I know that and working on it.
I am using LED lighting and heights manufacture stated for tops of plants were burning the tops..
I am using coco/ perlite with jacks classic water soluble plant food.

same thing happent to me. it is nutent lock out. or ph you have a point. did you use ph or did you mix your nuts correct order

I have checked ph for the water/nutrients and and it has been stable... I have tried aquaponics and understand there is definitely a order to nuts entering that but this has been coco and perlite with ph balanced. And I use a water soluble solution that i thought to give a try.. I had 3 plants before this crop that did just fine without problems.
So maybe strain? When I did use aquaponics it seemed the ph went up or down depending on the stage the plant was in flowering/veg
I dont have a ph meter for the soil... But thats what makes me think ph but not sure have few others same time same dirt and all thats very green and thriving.

Think you could take pictures of the plant with the blurple off?

You're directly asking us to look at the colour of your plants there... we can't do that under the conditions the pictures were taken.

I wonder the answer to this question. its all same. but ı am go in on and ı was only able to get 20gr a plant

spek9 said:

Think you could take pictures of the plant with the blurple off?

You're directly asking us to look at the colour of your plants there... we can't do that under the conditions the pictures were taken.

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ı use same light. ı can see the color.

need to post my garden tomorrow will you help to me? spek9

absolutely take photos under normal lights period.
It makes plant highlight shit that cant be diagnosed properly because of the “ unnatural “ color shift.

Budzbuddha said:

absolutely take photos under normal lights period.
It makes plant highlight shit that cant be diagnosed properly because of the “ unnatural “ color shift.

Click to expand...

It's especially a pain in the ass for us folk who are literally colour blind, and need as close to reality in order to 'perceive' the colours properly.

I get the “ show the grow “ aspect but we need to see the plants as they ACTUALLY look like.

you guys exactly right! but when you saw same scene you can able to see the color.