Kenfuzed
New member
Anyone suggest where I can find a good deal on a CO2 solenoid? So far I've seen them at MD and customaquatic in the $50 range but would like to find one cheaper if I can. I don't care if new or used as long as it works. I'm trying to get a grip on my pH drops that bottom out every morning at the same time despite my reverse refugium lighting. Figured I could use my controller to shut down the CO2 supply at a given pH point to help flatten out the swing.
