Dude i have that Schultz shit and i dont think it's a very good fert. because it doesnt really seem to have much effect on the plants. My suggestion would be to get more lighting because 150 watts of floros isnt that much, and the light from this may not be reaching the bottom leaves. You should go to a real gardening store and buy some bat guano cuz that shit works for real.

Damn just looked at your setup and i hope your planning to put those out side cuz with what yoy have now i dont think youll be harvesting much.