| | Co2 regulator and Soleniod valve question
Hi all. Ok, I have my CO2 tank charged and ready and my CO2 regulator just came in the mail. It has a Solenoid with it, but I don't have a ph controler. The question is...do need to plug this in to make the regulator work? And I have read some people pump CO2 all the time, and some people have it rigged up where the CO2 goes on and off with the lights(to avoid ph swings). I guess the answer to the first question will kind of answer the second. Thanks. new here...dah!