Sounds good to me. I usua change my water once i have added back the volume that the system holds. That ensures nutrient ratios stay within the linesHey
some info for others too
This is a Strawberry Kush Feminized with about 4-5 weeks left (I think).
PPMs are on average 700.
Water replaced last week
I generally use about 4 teaspoons of Cal-Mag when feeding/water replacement, and equal parts of General Hydroponics Flora series trio. PH is always 5-6.
@Aqua Man, maybe you have an opinion as well?