Is this normal or some kinda of deficiency?

Also, some yellow leaves on the bottom are normal

Absolutely

Yellowing has continued on the same leaves despite me feeding a couple nitrogen rich organic fertilizers a few weeks ago and it has now started on my other plant of the same strain, guess it comes down to genetics or something since they are definetely not missing any nutrients.

Looks like a mixture of old leaves which don't receive much light anymore dying off, and a touch of cal/mg deficiency. What Ph are you feeding at and are you supplementing cal/mg already?
It's just that it can be there, but you might be feeding say, under 6,and have issues.

dobbles said:

Looks like a mixture of old leaves which don't receive much light anymore dying off, and a touch of cal/mg deficiency. What Ph are you feeding at and are you supplementing cal/mg already?
It's just that it can be there, but you might be feeding say, under 6,and have issues.

Click to expand...

6.5 ph and yep im feeding a calmag nutrient from roots everyweek according to their schedule.