Well if you are using bottled nutes than i would continue feeding just the plants. I run mostly "organic" so I'm adding things like minerals (gypsum pellets, basalt, oyster shell flour, rock dust)
Added micro minerals this round as well.. all acquired from build a soil
For nutes I usually add oh about 1/3 cup of epsoma tomato tone to my soil and let sit for a couple weeks. Usually you will have mold balls growing in the tub from the tomato tone but just grab the shovel and stir your dirt around. It can be used as a top dress so idk if the waiting period is necessary just seems to break some stuff down to be more readily available to the plants. I would also consider looking at buildasoils top dress flower kit. Gives a great boost going into flower, it's easy and good stuff