Hi all, so i'm two months into the hobby, and my eyes are getting big, and my wallet.... well, is appropriate for what I'm looking at, creating/upgrading to a 125 gallon in wall reef tank. I will continue my own build thread once I kick it off. However, that said I am currently using a 16 gallon biocube as my training wheels for me and my son. That said. I know and read people screaming, test, test, test, test your water parameters. While I understand knowing your parameters will allow you to know if there are any problems, I do weekly water changes of 10%, my corals are happy. I've taken my water to my LFS who's tested my water and said my parameters are spot on. My question I guess is, how critical are testing waters if you do your regular and appropriate maintenance. (That said, the only thing I do test and really truly worry about is my gravity, I dont need Salted Fish Sticks in my tank). I DO plan on getting Hanna or Triton Test units that said, but I mean if everything is staying the course, then is it really that big of a concern?