Looked at the pics in my grow bible. But so many look kind of the same. I looked at my flower nutes (MaxSea 3-20-20) and thought maybe its lacking in the Cal/Mag department. What does it look like to you?
My guess would be Mag def. instead of N since the discoloration isn't starting at the tips. Here is a link for you to read through and make a good educated guess, although it comes from another I have kept it in my library for the past 7 years. Good Luck
Canefan...Thanks for the most excellent thread!! That pic of the Mag Def looks exactly like what going on with my girls!! Im going to look for the Earth Juice MicroBlast...But might also do a epsom salt foliar treatment. Thanks a lot!!! If I have a lot of typos..sorry..I smoked a bowl of last years crops!!