Do I need to add calcium

[tableforglasses]

So I have been using red sea coral pro salt. Since then every time I test my calcium it is around 500. I haven't dosed calcium since switching. Does this seem right or am I missing something and should be dosing as well? (I use red sea calcium pro test kit)
Thanks
300 gallon reef tank
85 gallon sump system

 

[lmforbis]

Sounds about right

 

[beaslbob]

If your KH is a little low, bring it up with baking soda will result in lower calcium