Trainwreck upper leaves getting yellow

[Shctr]

After last feed trainwrecks's upper leaves are start to yellow also leaves stems getting purple-red. My ph always 6.1-6.6 (soil) so i dont think its about ph. is it cause of overfeed? How can i solve it.

 

[Peripatera]

What was your water ph on last flush?

 

[ThcSnow]

This also could be a heat stress problem not all plants act the same to light height my last ones like the light 18 onches away the ones i have now like it 24 inches away. I learned a while ago when the plant starts getting pale on top its time to back the light off.

 

[OEF Vet 11B]

Kinda looks like heat stress but I've read multiple places to aim for 6.5 to 7 of ph. I'm not great at controlling mine but that's just what I recall reading.

 

[MajinGreen]

Are those pictures of sleeping plants taken with a flash?

 

[Shctr]

What was your water ph on last flush?

Ph was 6.9 on last flush. I have flushed only one time after plants getting nutrients defiency. Now i'm waiting for dry out soil but 2-3 weeks ago soil was dry in 2 days but now its taking 3 4 days for dry out. i dont know why.

 

[Shctr]

This also could be a heat stress problem not all plants act the same to light height my last ones like the light 18 onches away the ones i have now like it 24 inches away. I learned a while ago when the plant starts getting pale on top its time to back the light off.

I have 24 inches away now. I gived them much nutrients so they have defiency now. I flushed them now i'm waiting for dry then i will start give nutrients half dosage. I worry about it will be nutrient defiency again. What must i do now with nutrient. I'm using advanced nutrients product and i'm new for an.

Are those pictures of sleeping plants taken with a flash?

I know its bad idea and i did it only one time also i took pictures five minute before light on.

 

[Shctr]

New photos.