m.o.b. gone yellow

Looks like a nitrogen def. to me. If there is only three weeks left it'll probably be fine, but you could add some +N fert if you wanted. The bloom nutes you are using dont add much nitrogen because a gradual yellowing of the leaves is considered natural, but you don't want them dying off too fast/early. Many people continue using their veg nutes for the first two weeks or so of flower, during the stretch.

Just something to consider, if you switched to an organic grow next time you could retire that pH meter as well as the bottles of pH Down. Look into it in the future if that interest you.

I'm definitely heading in the direction of organic this was my first grow and while i think i did alright i would love to simplify the process. my girlfriends mother who let me grow in the house we rent from her happens to have a huge compost pile and also grow her own worms in the basement. so i'm thinking i can come up with a decent soil mix to atleast cut way down on nutes if not eliminate some thanks for the info man nitrogen def seems to be the general opinion which i was pretty happy to hear i thought i way over fed em