kind of confused

[amber3k]

So I have started using a refractometer after using a swing arm. My salinity was 1.033!!! Over the course of 24 hrs. I have lowered my salinity down to 1.025, obviously that means replacing tank water with fresh rodi water. I also switched from api test kit to a red sea test kit. After the water change (with fresh/no salt) my mg is 1400, kh 10.6 and ca 550. I don't understand why my numbers are so high when no salt or supplements have been added. My actual last saltwater change was on Saturday, if that matters at all.

 

[Reef Frog]

Some brands of reef salts are formulated with high concentrations of the major elements. Your ALK & Mg are in the range that many reefers shoot for.

 

[Fragtastic Reef]

Only number I see high is your calcium you may want to retest just to be safe. Make sure your refractometer is calibrated with calibration solution.

 

[amber3k]

I will definitely recalibrate the refractometer, although I did it several times already just to be sure and I will recheck my ca this evening, too. How will the high calcium negatively impact the corals/fish?

 

[billsreef]

While the Ca is on the high side, it's not high enough to be problematic. I wouldn't worry about it. It will come down over time as things grow

 

[amber3k]

Thanks. I recalibrated (it was one the nose) and retested ca and nothing has changed.