Help my 2 plants! Thank you

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I use a TDS 3

I think i will turn the light down for a bit, change all the water so it's fresh and make it max 800

[Coolbogge]

I have a had time detecting what the problem with these 2 plants is ?

Hydro grow, week 4 but still use week 3 nuts

PH level...

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Hydro grow, week 3

PH level is 6.3 right now.

I use drip system

I use advanced nutrients (look at picture) ...

[Coolbogge]

I have a had time detecting what the problem with this plant is?

I had some swings in PH, but i don't think it looked like that
...

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Bluey Would you also water this plant less?

I fixed the ph so it's 6.1 now, should i go lower? ...

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I have it at 6.1 now

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Thank you guys , will check the water every time now! ...

Hi
I would leave it alone
Remember, weed is just that, a weed, so leave it for a couple of days, only water if it's dry and she's sure to...

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Yeah it's high, but since it's PH perfect, it should regulate itself? Kinda weird, anyways i make the PH 6.0 now.

I will water the dirt and...

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Hallo hydro grower coco root starter, using advaned nutrients.

what is wrong with my plant? i tried removing the water for a day in it still...