@Janci I don't have my DaStaCo controlled by the Alkatronic. I decided against it because the way it works would be to have the Alkatronic turn on and off the power to the DaStaCo controller using the bluetooth socket that comes with the Alkatronic. I wasn't certain how effective that would be so didn't try. I find that the DaStaCo does such a good job of keeping the alk stable, that I have very little need to adjust it unless I experience a big change in the tank that causes less or more alk consumption. That's where the Alkaronic comes into play by alerting me to the change. When the tank is stable, the Alkatronic reports a consistent pattern of Alk level throughout the day (the daily range is currently 8.43-8.62). I guess I could reduce that fluxuation some by controlling the DaStaCo, but I'm not convinced its necessary. My SPS have excellent color and growth so I don't think they are unhappy with the current swings.
That said, DaStaCo is coming out with their own Alk monitor that reports to the controller and controls the peri pump. I'll be interested to see how well that works.