Thanks, I will do a water change, found a rusted out mp10 that was in the tank. Has since been removed.That copper level is fine, that is 0.008 ppm, nothing to worry about. What additives, if any, do you use? Tin is high, which is odd. I would run another FM ICP to verify these numbers. Never use just one test as a basis to make changes.
I will use the copper removal stuff in a filter sock and plan to send a follow up icp test in 2 weeks or so. I don't plan any drastic actions.
I also tossed in fresh carbon yesterday evening.