Snake_Eyes;1193104; said:Yeah I don't get it either. I'm doing one 50-75% WC a week, doing that my nitrates get down to 10 but by the end of the week they are back around 20.
I don't have enough lighting (one 24" single tube) to keep plants alive.
Do 2 50% each week maybe that will change the params. If you do more frequent smaller WC's then the water will be more stable at 10ppm

