Plz help!!!

First of all I want to say hello guys,I'm new here and I got an little problem it's my first grow indoor and like noob i thugh its Mag deficiency I spray them with magnesium sulphate few times and its its show alitle bit better but still not fix the problem,becouse I grow in soil I dident pay attention to PH any way just got my cheap oh meter from China its 7.0 from the tap water and 5.8 from the runoff any way here some pic
I'm sorry for the poor English and hope you. Guys could help

Ohh forget to mention the grow is in soil I add abit coco perelite and vermiculite and bit compost

Any one???
ZzZZzzz

Looks like overwatering-poor drainage and/or too much nutrients.

over watered, 2 of your pics the dark ones look like they have had too many nutes, the light pic looks like not enough nutes, what light is it under

Give some details of the grow. What ppms are you feeding at? What are you feeding? What kind of lights do you run?

BOOBIES!!!!!

I'm watering only when soil is dry , running 400w mh and almost not feed the soil is fertilized
And about ppm don't know have ppm pen