What deficiency is this please help?

What deficiency is this?

Maganese(mn) not magnesium or iron def

I'm assuming you need a catalyst. You havent provided enough details about medium ph well water or city water.ect

add some cal mag... and make sure you ph your water

I get that kind of leaf discoloration on every grow it seems and the Bud is always Primo.

Need more info or you will just get a bunch of newbs saying calmag.