matt2364
Member
Hello - I just purchased a calcium reactor for my 55, soon to be 75 gallon reef tank. The reactor did not come with a PH controller and I am looking into getting one. I am just wondering if there is a big difference between these two models of PH monitors/controllers. I know that one has a higher available set point. I heard that the media dissolves at 6.2-6.7 depending on what kind of media you get. Since the cheapest controller the SMS 110 ($72) has an available set point of 7.5, there is not reason to get the SMS 122 ($110), right? Let me know if there are any other differences anyone knows of, thanks. I look forward to everyone's responses.