Questions - Need some input

Any reason not to get a Calcium Reactor?
Other then money...

I've always done 2-Part, and have dosing pumps... The tanks demand is light for the moment, because I'm still getting corals. The trace elements and automaton perk my interests. - A Kalk reactor did come to mind for the mid-step. But I read too many tank disasters involving Kalk OD's ... Unless I'm missing something that seems kind of impossible with a calcium reactor.

If I do this, we're not holding any ...