Water is 64. I have the Grownix 600 deluxe. I back flush every week. Ppm is 0. Idk if it's time to change the membrane.
Can it be I do to many change outs?
I water change every week. Got ph flux, yellowing. I'm using the current culture line. No additives. RO water calimag in veg calimag in flower. What am I doing wrong. Help!!!