Hello everyone!
I have a problem with my DWC. Namely, when I mix all the fertilizers and set the ph to 5.8, after 4/5 h the ph jumps to 6.3 / 6.4. I lower it with the ph down preparation (literally a few drops are enough) and the ph returns to 5.8. then after 4 hours the ph again jumps to 6.4 or...