Fan leafs yellowing

[Jumper114]

Do you have a better photo of the whole plant? Underneath can also be lack of light. But from the looks of your photo, yellowing is occurring on top from the tip inwards.

[Harry1990]

Hi just been over did a good flush 1st run off was 1.0ec. Got the run off same as plain water going in now but can not see 1.0 burning plants. I’ll forward some better pictures now thanks

[Harry1990]

More photos
Maybe am just been to fuzzy but like the second thought thanks


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[Harry1990]

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[Jumper114]

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Looks like nute burn to me ... can you do lights off photos?

The leaves look very serated and tacoing too much.

What your temps?

[Easy-T]

if they were mine id check me pens now you flushed them, and just start feeding them again
i think they look a bit hungry jmo

[Harry1990]

Temps are around 28/31ish now on 12/12 lights are set to come on at nights

[Harry1990]

All leaves around the flowers look nice and green and healthy just seems to be old fan leafs. Could this be the strain off the plant there granddaddy purple got about 7/8 weeks left roughly?

[Harry1990]

My background water is 0.4/0.6 I’ve been making the mixture up into 80l bins started at 0.8 1.0 and now at 1.2ec. This is with the background water should I be taking that off the final mixture? Eg 1.2 take my background water leaves 0.6 off feed or should l be adding the background on? Hope I’ve explained that correctly

[Jumper114]

Temps are around 28/31ish now on 12/12 lights are set to come on at nights

That would explain the tacoing. I would definately start feed again and see in 24h