Hmm Calcium is tad high?

[Aquattro]

Originally Posted by elitesurfer

I'm using refractometer to measure salinity and API test kit for Ca.
I'll recheck them today after I get home. I'd like to know how salinity affects Ca?
Also, I was Kalk dosing for a week but stopped it because I thought it was unecessary on my tank.

higher salinity will indicate a higher concentration of all elements, including Ca.
Since the values are probably correct with the refractometer, and the info about dosing kalk, I think we figured out the high Ca
With a light stock of soft corals, regular water changes are probably enough to maintain calcium, no need for kalk yet.