Calcium Additives bubble a bit when adding to water?

[Eb0la11]

Hey guys, so I got some reef advantage dry calcium additive here for dosing and when I added it to the RODI water there was almost a small chemical reaction with each teaspoon. Very very very small, just a little instant fizz and then that was it for the most part. Like literally .2 seconds but I didnt notice it with my last package of the stuff. This was a new bottle of it.

Should I think much of it or put it in my tank?