I would also test Iodine. Theres lots of test but usually if the ammo, nitrates, and nitrites are ok. A decent water change will put most everything else back in the right order. My calcium was about 500 thats 80 over the suggested and my polyps wouldn't open up. Then a 20% Water Change and they opened up about an hour later. You should really check them if you are dosing for sure, if you not dosing weekly WCs should keep everything else ok.