Leaf tip turning brown

[Ghettogospel]

A couple leaves are turning brown and tip of some are turning I’m using soil a ph of 6.3-6.5 and these nutrients

 

[Emilya Green]

Looks like the start of a magnesium deficiency, very common under LED light and when using filtered water. Add some calmag+ to your nute program, and this will keep this problem from getting worse. The leaves now affected will not come back... they are being cannibalized for their stored up magnesium. Don't remove them until they want to fall off by themselves, or the hungry plant will simply move to the next leaf in line and will do the same thing to it.

 

[Ghettogospel]

I have white widow autoflower

 

[Emilya Green]

Oh, and welcome to the forum @Ghettogospel !

 

[Emilya Green]

I have white widow autoflower

Definitely a hard hitter that tends to be a bit nute hungry... this all seems normal and expected to me.