Your test results indicate what we might have suspected - an algae bloom on its way. With a CYA of 60, maybe 70, your ideal FC range is around 8-9, and never below 5. So right away the potential for algae is there, even if you don't see lots of green. You have an elevated CC level as well which points to algae. You are a prime candidate to start a "SLAM" (link below). Your pH is already in a low position, so if I were you, I'd increase the FC to "24" and follow all the instructions on the SLAM page. If you believe your CYA to be closer to 70, then increase the FC to "28". Make sure to follow all the guidance on the SLAM instructions and don't stop until you pass all 3 SLAM criteria. Good luck!