You clearly know what you're doing mate. I'm getting ready to do my first grow ever and I'm going to use your pictures and setup as a guide. Thanks for sharing, this is super inspiring.
Theres nothing I love more than logging on and seeing a beautiful little seedling in my feed. She looks like such a gorgeous little baby and I can't wait for the surprises she has in store for us. I'm excited to see where this grow goes and how it turns out. I'm even more excited to see the methods of training and the nutrient regiment you have planned for her. I wish you the best of luck in this grow and I'm ecstatic to see what happens. Best wishes buddy, Cheers.
@Bigrobbud, I'll try to give you the quick answer.
As nutrient concentration (ppm/E.C) increases, pH will decrease. If you use a top-off reservoir (which I did not in the grow) your water volume will stay stable which means that as the plants drink/eat they will consume nutrients and the concentration will slowly decrease.
If your water volume is constant, you should only ever see a sudden pH drop during a bacterial bloom, normally root rot.
I use a top off reservoir full of taper water that has a pH of 7.8 or so (pretty high but it works).
I use a pH doser (check my newer grow diary) to pH the water down if the pH goes over the setpoint. I start around 6.3 in veg and work my way down to 5.8.
