Ok cool that’s basically what I was thinking. Was gonna use the rate of dosing they are using now as a rough starting point for when the get moved to the new tank and test to make sure the consumption doesn’t change because of the move.If the corals calcified at the same rate (they may not) and they were all of the demand in the frag tank (meaning nothing else used alk in it), then the amount added as a supplement stays the same, even though when referred to in dKH, it is a smaller value (because it is a larger water volume).