@anon32470837 and I have spoke of the Amberlite ion-exchange resins in the past, so I figured now that my res ph is stable and the plants are getting a bit bigger it was time to break out a new toy…
https://www.torushydro.com/product/perfectph-70-gal/
I went ahead and oversized by picking up the 70 gallon unit for my 35 gallon res. I’ve only been having to give a small squirt of pH down every few days lately to keep the pH in line, so I am going to drop this in tonight and over the next few days I’ll have some solid data on how this works…