I am looking into making my tank a planted aquarium but I want to make sure I have the funds to do it properly. One of the things I am worried about is a proper CO2 system (they can be very expensive). I was hoping that someone here could point me in the right direction of a good but cheap CO2 system. I was looking at the Red Sea CO2 Pro System but I wasn't sure if it was actually any good or not. I don't have a whole lot of experience when it comes to CO2 systems but I am still reading up on it.