Jim_S
Timo Boll
<a href=showthread.php?s=&postid=12434503#post12434503 target=_blank>Originally posted</a> by Marko9
No matter what you get Jim, make sure it has a fine tuning needle valve that will only make it easier to control your co2. Why do you need a PH conrtoller? Just one more thing to clean and calibrate.
BTW, the best gadget I've ever bought was an AC Jr![]()
I was assuming that most run their reactor with a ph controller..... Is that not how you run yours?
What else do you use your AC jr for?