Yes. At least 2 x a week.
My schedule was synth, synth, organic. Or Canna/PKB, Canna, Fish-Seaweed or Molasses. Repeat.
I would water maybe 50 ml solution per Canna watering, then water to run-off with organics. By the end of week 8 I dropped synth nutes and only watered with organics. These ran 9.5 weeks.