Use apex to controll ph in reactor or use separate ph controller

[Zaireguy]

Hi all

I am setting up my reactor slowing getting what i need.now i have a geo reactor. A feed pump.
Now my question is i know i need another ph probe for the reactor but do i use the apex or a separate ph controller?
I still want to be able to have a ph phrobe for the main tank.so do i use the orp spot for the new ph phrobe or do i need another module
Only reason i thought of separate ph controller is cause you get a phobe with it
Any advice

 

[Zaireguy]

Got it figured out

Thank you