Help with calcium reactor...
 

I have a CanReef reactor. Lately it has not be going on becuase my Ph is not
swinging much at all. I have the CO2 turning on at 8.2. But I have not seen
the PH go higher than 8.1. Maybe becuase of all of the hair algae???)
The reactor used to work very well. I do NOT feel this is a reactor issue,
as it is not being cycled on. More of a chemical issue.

Ammonia: 0.15
Ph 8.1
NO2 0.0
NO3 0.0
CA 305
Magnisium 870
PO4 0
Alk read normal (LOW/HI/NORMAL test kit.)

What do you recommend?

Thanks
Mc