HELP: leaves on 1 strain going orange at the tips(bottom leaves only)

[rick1210]

This is my first grow and they are about 5 weeks into veg.
Im growing 2 white widow and 2 haze and this issue is only on the haze. Additionally the haze are much smaller than the whit widow.
The orange (now turning brown) is on the bottom loeaves only. Im not sure if it could be because the leaves have been in contact with the damp soil?

Any help much appreciated.

My setup is a 1.5m x 1.5m tent, 600w LED light, growing in cannacoco and using A&B nutes, cannazhyme and rhizotonic.
Ive topped the plants and starte LST on the white widdow only. The haze still seem small and it is the haze with the oranging leaves.

 

[Gjourney101]

If your pH is good, it looks to be the start of a potassium deficiency, in my opinion. Have a look here -> https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency

 

[Gjourney101]

What is your soil and water pH?

 

[CaptainWiese91]

When i first saw the leaf I wanted to say phosphorus/potassium deficiency.
but when I look at the whole plant am zoomed in, many tips are burned, or a little yellow’ish. So I’m actually thinking you have a nute burn?🤔.
What type of soil you have. ? And the PH levels ?
Are you feeding the same amount of nutes to every plant?

 

[Toker1]

Check the ph as this is the most common issue.