Week 3 flowering w/ pics

Week 3 of flowering. its a Topped Sativa. Did stretch on me. Pictures are of all 4 tops and the base.





I'm starting to get some yellow leafs, im using 15-30-15 fert now to help, Im assuming its my Potash number it was 10 before, and I know it should be up around 20.

She is a lanky lady isnt she!!
i'm gonna pull up a chair with this one SnR420, i dont really know sativa's and would love to grow one

It is quite normal for the female to go a little yellow on the fan leaves during flower stage. Don't go all ape-shit changing things because of this, again, it's quite normal (see FAQ's "plant problems" to back that up). They look just fine and should start filling out a little more now too. If the leaves in your tops & cola were as yellow, I'd be more concerned.