Depending on how active your soil microbes are and how hungry your plant gets (how big is your light?), you might need to go with seabird guano to get you through the middle of flower.
I’m chopping my first plant tomorrow that I grew in a 5 gallon fabric pot. FFOF + alfalfa meal + worm castings + probably 4 tablespoons of bone meal + probably 10 tablespoons of dr Earth (tomato and flower girl). 3 weeks into flower she started showing phosphorus deficiency had to give her seabird guano teas every 3 day watering.
It was my first grow. I may have made some mistakes with watering to slight runoff. My TDS’s on runoff were crazy high, but the plant was healthy until she got into the middle of flower.
She made it through though. I put her into the dark tent for 2 days this was her yesterday just before I put her into darkness.