My tank has been running for about a month and a half and we have a few fish, bubble tip anemone and corals in there. We have zoas, and just added frogspawn and acans. They are all pretty small but my DKH keeps going down seems pretty fast to me for what is in the tank but not sure. I wanted to get someones opinion. I did a water change Saturday afternoon and the DKH that night was 9.1 and Tuesday afternoon the DKH is 8.3? Saturday night my calcium was 480 and mag was 1500. Is there something I should look at or is this ok?