Yellow veins

[gawcrea]

My leaves are turning yellow. But not like the pictures I've seen.
The yellow is in the veins from the middle to the outside.

I have looked for this in the refferences but either missed it or its just not there. I just harvested one and it's fine. Now I have another. Cound it be the strain or a problem. thank you, gawcrea

 

[Thew1sest]

You have any pics at all?? Yellowing of the veins and leaves could be a number of things, I'm not sure if it's a strain genetic or what... but have you troubleshot every other angle it could be? Check your ph, temps, nute intake, etc.

 

[gawcrea]

Thanks for replying.
As far as I can see everything is where it should be.
What one gets they all get, the ph, temp, nutes, light....
So what I didn't make clear is there are about 15 plants with the
same everything, but so far only 2 have looked like this. I will get pics next time as the 2 are gone. The yellow goes right down the main vein and traces the veins that are on a 45 degree angle and the rest of the leave is green.
It doesn't seem to be spreading and the cannabis was fine, so I just wanted to keep track of things that pop up that I don't know about.
thank you gawcrea

 

[McCrackin]

check out mag def and calcium def... Get a micronutriet that can be added at low ppm to help fix... Chlorosis is the word for the veiny look of leaves, usually mg def...

 

[gawcrea]

thank you. I cut off all the bad looking leaves and repotted from a 5 gallon to a 7 gallon and so far the leaves are all green.and the other one I harvested and was ok. But next time that happens I will try some suppliments. thanks, gawcrea