I start them in Royal Gold Mendo mix for the first month, then Down to Earth guanos and kelp meal in a worm tea. My tea for the OS was missing the little bit of Nitrogen that is required during flower and the large fan leaves ended up yellowing prematurely. I addressed it with advice from this forum, but it did a number on bud development.
I haven’t fed the Lemon Pie anything other than water and worm tea, but I usually use Greenleaf nutes. Idk if I’m going to keep this one organic, because I don’t want to screw it up. It’s a pretty plant, so far.