Just curious, how much does it cost to set up a good calcium reactor? I'm away at college and my mom takes really good care of my tank. I know that sounds kind of silly but she's been doing it for about 2 years and my tank is doing great. I do a small water change every month or so. Would a calcium reactor be a better way to go for calcium and carbonate? B-ionic is doing great but it would also be nice to not have to mess with it. What kinds of things can go wrong?