I am using reef resh system 4.
my nitrate and phosphate is undetachable.
I find no motivation to change water. But either 1 red pail in every 2 weeks or 1 month. I dont change more than that.
my regime consist of
daily reef resh system 4
either osyterfeast or rotifeast if I remember
night polyplab polyp booster
Grotech ABC 50 % of recommended weekly.
weekly measuring of Cal, kH and Mag
whenever my water level is low, I dose with Kalk =) One bird kill 3 stones... top up water, add Ca and kH