In the past I was using IO salt and semi-regular had to dose Fusion for Alk and Cal as well as Ions for Mag. A few months ago I switched to Red Sea Coral Pro and BRS 2 Part (actually 3 part but....). Soon after the switch to RSCP my Mag and Cal were way low but Alk was near where it should be. After dosing up the Mag and Cal, they have stayed very consistent with nothing more than water changes. But the Alk is constantly dropping off if I don't dose regular.
It is logical to me that what Cal and Mag my tank consumes is being replenished with water changes but why is it that the Alk drops so much quicker. From my reading, it appears that the mag is required for the coral to process the Cal and of course the Cal is required to build skeletons but what is causing the Alk to drop?
It is logical to me that what Cal and Mag my tank consumes is being replenished with water changes but why is it that the Alk drops so much quicker. From my reading, it appears that the mag is required for the coral to process the Cal and of course the Cal is required to build skeletons but what is causing the Alk to drop?