the problem is not your feeding, its your light.
your girls grow with avery short internodial distance, meands the light is to close/ to strong
and plants are dwarfing under the light.
when alot of light hits the plant, the systems run faster, she evaporates more water, needs more nutrients
if you want to push your grow, dimm back your light, and stay with the feedings you are already doing
maybe get some calmag but most products contain Nitrogen tpoo, so watch out