I was with you until the last sentence. I believe that testing your water routinely is preventative maintenance. If I see my Alk slipping, I will take action before my livestock is negatively affected.
Do I think you are a terrible person for not testing? No, but I do believe tragedies can be avoided by testing. I do understand that people develop the "reefer's eye" over time, I just think there is too much to gain by testing.
My view of preventative maintenance would be routine water changes.
Sent from my iPhone using Tapatalk