Is my calcium too high?

[demariners]

I realized my calcium is a little high at 490-520 ppm. Should I be worried? What's the easiest way to lower it? I assume my clamswill eat that up pretty quickly? I use kalkwasser so I assume discontinue that for a few days?

 

[skidoctor]

Quit dosing for a few days. Water change will help. It'll be used up in a couple of days.