Veins turning yellow

[Santurro99]

Anyone ever experience where the veins of the leaves turn yellow while everything else is green? Some leaves are yellowing completely from the stem to the tips of the leaves. Mostly mid to lower leaves. Or is this the natural yellowing that occurs.

 

[Thew1sest]

If you could provide a pic, we could trouble shoot the problem a bit better. Some yellowing of the interior leaves are genetic to a few strains, it could be heat, or it could be zinc deficiency, and the list goes. Picture would help a lot.