Hey, my auto is now showing preflowers, since I wont be controlling when I flower I won't know when to switch my nutes. Do I start using a bloom formula after significant preflower development or wait until my buds really do start coming in?

I'm currently at day 17 of my grow, check out my sig for the link to my log:hippy:
maspino1 Reviewed by maspino1 on . Preflowers and nutes Hey, my auto is now showing preflowers, since I wont be controlling when I flower I won't know when to switch my nutes. Do I start using a bloom formula after significant preflower development or wait until my buds really do start coming in? I'm currently at day 17 of my grow, check out my sig for the link to my log:hippy: Rating: 5