CCs can indicate that you have a problem. You don't need to test for that right now, because the green water is telling you that you have a problem.
Did you bring your pH down to 7.2 before starting SLAM, or did you leave it at 7.5? Definitely do not adjust it when FC is over 10. Don't bother testing pH at all with FC above 10. High FC invalidates the pH test, as they interact. It's like getting on a scale while holding a backpack full. You know your weight is somewhere below what the scale is telling you, but no idea how much or how little.