Originally Posted by electrikat
If you do regular water changes(10 to 20% a week) with a good salt mix, you do not need to add additives.
This is not true. Ca
MUST be supplimented if your keeping any kind of LPS
corals. The water change will not keep the DKH
and the CA
high enough for the corals to use it. Ca
needs to be up around 440 and DKH
should be in the 10-12 range. If the DKH
is not in line, the corals cannot use the Ca
no matter how high the level. Water changes will not properly buffer the water.