Hello,

I'm currently setting up my new reef tank and been setting up the P4 alongside.

Now I think my measurement data or at least the graphs are wrong by -12hours.

I've set up my Calcium reactor to be controlled by the profilux 4.
So the pH is measured, CO2 is added when needed etc etc

Now I've set it up yesterday (17/03) around 15-16h.
That would mean my pH would start dropping then. (which it did)
My graphs state that my pH started to drop on 17/03 around 3h in the morning (seems off by -12h)


I've set up nocturnal change to start at 19h.
My graphs state that my pH started to rise at 7h in the morning (seems off by -12h)

And it dropped again at 19h, so again off by -12h

Profilux system time is set correctly, PC time is set correctly.
Am I missing something?