Hi, I am going to try the Sears/Conlin system and was wondering if you can recomend a good Iron and Nitrate test kit. I really don't wanna spend alot, thats why I'm asking. I know that Lamotte makes great test kits, but, its a little too much for me ($wise). I can get Seachem Iron test kit for around $22.00 cdn, would this work? Thanks Steve Bansee Winnipeg, Mantioba Canada