What PH Range do you keep your controller between?

[Doo]

Setting up a CA reactor and I am using CaribSea A.R.M. Aragonite Reactor Media (the bigger size)...

What range do you have set on your controller for PH?

At what PH does it turn the CO2 on
and
At what PH does it turn the CO2 off

My PH probe sits inside my reactor...

Thanks

[H2o2]

I set mine at 6.80 off and 7.10 on but it all depends on load i think

[Doo]

No SPS

any other thoughts?

[fencer]

6.8-6.6

[untamed]

Set at 6.5...Turns on at 6.55 and off at 6.45.