I doubt root rot is / was causing your ph to rise .
Rot more often than not causes drop , not rise . I use hydroton too , I soak it in ph corrected water for 2-3 days before even introducing it into my system , and I rinse as much of the powdery crap out of it beforehand . Depending on what stage of life the plants in I get as much as .5 or more ph fluxuation per day .
I try to keep my res. somewhere between 5.5 - 6.2 . Hydro is much more maintence than soil .
Peace
Crispi :jointsmile:
xcrispi Reviewed by xcrispi on . PH KEEPS RISING! PLEASE HELP!!! Hello, I am running a recirculating top feed drip system in six of the 5 gallon buckets with pure hydroton and a 10 gallon reservoir with ice to keep it cool. Feeding goes on all day with 2 minutes every 10 to help it drain. I am using the three part advanced nutrients with silica, that fulsomething acid, nectarsweet, calmag, wet betty, and supervit. I have a CO2 system. Change the water out regularly. I am using RO water. Here's the problem. A week ago my ph began to rise, I figured it was Rating: 5