Need help. Leaves are Dark Green

Grow Support
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Growing Power Plant Auto under a 4000w LED

One of my girls that is in early flowering (day 47) and putting on pistils beautifully But has quite dark green leaves all over the plant than all the other plants, Seems to be growing fine with few main colas and beautiful down growth as well. Now im shiffting to flowering nutes. My question is should i flush the plant for the nitrogen toxicity before i start fully pushing with the blooming nutrients.
My blooming nutes are NPK 6 : 30 : 30 + TE

The middle plant in the photos ive uploaded is the plant im speaking of

Also should i do some defoliating and LST right before this flowering period. Ive included a photo of the whole grow space as well. Any advice guys?
I have RH at 60% temp 23-25°C
Watering when soil becomes mostly dry.
Nutrients every 5-8days

Any advice for me dear vetrans out their.
Thanks in advance.
This forum has been a life saver and a heart attack deflector. I really appriciate everyone in this community out their sharing our experiences.

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I dont see any plants with nitrogen toxicity.

I would take some leaves that are overlapping and or blocking bud sights. You want good airflow. Most training takes place throughout veg. Some LST would be fine in preflower.

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I think they look good!

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Look good from here also. I would not flush. If feel N heavy then back it off a tad and let her use up what is there. I do not see any real N issue but old eyes.

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