I was kinda unsure about if the nutrients were dispensed on the very initial fill as well, thanks for clearing that up.
Also, Grobo should really say something about cleaning, sanitizing, and calibrating before growing. The step-by-step instructions do not indicate doing so. I probably would have otherwise
I assumed since my pH pen was in a storage solution and out of the factory, I would imagine there should be some kind of quality control on being calibrated out of the box. I do have calibration solution as well but I didn’t think it would be necessary up front… if I notice some problems I’ll be set to calibrate