Downyowo

That variagation is also suspicious... it can be genetic but it can also be a virus called tobacco mosaic virus. I hope it's the former. Good luck with the grow, this one is looking nice!

It can be related only to 2 things, ph or light intensity, from state of plant. 5.8 ph is for coco veg period, not for soil. In soil range is 6.2-6.8, best grow rate with 6.3-6.4. Adjust it asap, when you do next watering. Flush is only for coco or hydro, you dont do it with soil, if anyone tells you, dont listen.

Maybe soil is super soil… good grow.. haha i did check PH. Just give water:;

IDK 3 days try LST