"So in short, yes you can grow with few or even no water changes - it is even BETTER if you do, IMO - IF your water conditions are conducive to beneficials."
Perhaps I have yet to read far enough along in this most wonderful tale of V-Scrog growing...or...I just haven't been paying attention to what I have already read, but would you (or someone with your level of experience with water) please fill me in on how to determine - if my water conditions are conducive to beneficials?
So far, I've only heard the mention of your water being around 90 ppm right out of the tap...AND...that you keep it somewhere in the neighborhood of 65-70 degrees F...AND...that you supply oxygen to BOTH of your reservoirs. Is that it? Are those three things what makes your water conditions conducive to beneficials? And what would you say is the PPM level of tap water where this parameter is no longer conducive?
With gratitude to you and all the other pioneers out there,
CSR