Ugh I don’t know anymore

[Bobbylight]

So this is my 2nd grow and my last one didn’t make it to the finish line unfortunately.. This one seems to have been going better but alas it started becoming concerning about a week or so ago. So just some background information some of the bottom leafs are turning yellow. When this started happening it was just one or two but now is becoming more prevalent. Some info it is Girl Scout cookies feminized. It’s in a 5 gallon pot in fox farm ocean forest potting soil.. for the past week I’ve been doing 3 teaspoons of tiger bloom, 1 tablespoon of big bloom and 1 teaspoon of cal mag in RO water that was ph balanced to 6.5. The ppfd is 710 and the light is 12 hrs on 12 hrs off. Temp is 72.1 f and humidity is 63% vpd 1.0 kPa. I thought it was nitro deficiency at first cause it was affecting the bottom leafs mostly. But I don’t know if I’m right.. so I clipped off all bunch of the yellow leafs but the picture im including are some leafs that are turning 1 in the middle the worst. Any help would be greatly appreciated and any question I will answer the best I can.
Thank you

 

[TheGoldenRoad]

From the pictures, to me they look a little low on nitrogen. Could be a CalMag issue but if your plant needs nitrogen and can’t get it in the soil leaves are the next source.

Where you’re at right now, I would personally aim for a rH of around 45-50%. Also, when you run soil it acts as a buffer so having pH ideal range isn’t necessary.

 

[Galgrows]

I'd raise the light

 

[Grownsince95]

100% raise the light. You can see the indentation in the canopy where they refuse to grow upwards and bleached color.

That bowl shape of the plant is because the light is blasting the shit out of it

The branch farthest away on top of the de humidifier looks the happiest

 

[Bobbylight]

100% raise the light. You can see the indentation in the canopy where they refuse to grow upwards and bleached color.

That bowl shape of the plant is because the light is blasting the shit out of it

The branch farthest away on top of the de humidifier looks the happiest

If my ppfd is 700-710 how far do I raise it to not cause the plant to stretch?

 

[Grownsince95]

If my ppfd is 700-710 how far do I raise it to not cause the plant to stretch?

I would start with a foot and see how they respond