First Grow w/ T5's and 700w LED

Day 25! I started noticing some yellowing of the cotyledons and on the first set of lower leaves which I attribute to a lack of nutrients in my soil mix (40% coco, 30% perlite-vermiculite, 30% compost). I am doing my final transplant into 5 gal. smart pots filled with subcool's super soil mix but adjusted slightly to make it less, "hot". But for NOW, I have transplanted from an 18oz solo cup into a 1-gallon container filled with roots organic soil and sprinkled mycorrhiza into the transplant hole and on the roots of the plant itself and watered until a slight runoff started. Update: The plant was showing a bit of transplant shock with droopy leaves but the plant has rebounded in less than 8 hours or so. Looking very happy to spread out a little more and finally getting some, "food". Day 30! - I put the plant under my 700w mars hydro LED and it really seems to be enjoying it so far. I have also added a cool humidifier into the grow space to try and keep my RH closer to optimal vapor pressure deficit. I did decide to go ahead and give her some 5-1-1 fish fertilizer at 1/8 strength during the last watering on 11/21/18.