No do not cut the fan leaves like that. Thats olny good for clones that you want to root. If you cut part of a leaf it will spend energy to fix it. If you need to cut some leaves for light and air then cut of the whole leaf and pitiole (ps im bad at spelling) that way the plant does not try to fix. The best way imho to get light it to go horizontle like my scrog. This way all the buds are the same distance from the light. You could use a scrog net (me and my wife built ours from home depot for $17.00. Or you can tie branches to the side of the pot to open her up. Or you can bend the branches out till the snap and laying at a right angle. This snaping is not for the meek. It will seem very bad but is very very good. Check out supercropping, fim technique, topping, and scrog, all of these will help with light penitration and more buds and i mean way more buds. My last scrog i fimed topped lolipopped and supercropped. Just do it baby. Anyways about nutes, you need more nitrogen in veg and more potassium and phosforus in flower, the nutes you have will not grow medical grade cannabis. Check out general hydroponics flora series just google it. Also look at the feeding chart its on thier website and then you will get a good idea of what different nute for different stages of a plants life. Peace