Fix Low Ph

[andywar]

Hi all,

My Ph is consistently below 7.90 during all day and below 7.7 at night according to APEX probe (recently calibrated).

Redsea test reads 8.2

I already have a CO2 scrubber running into the Skimmer air line.

Already tried opening windows which did not had any effect.

Don't want to use a buffer as my Kh is 12

Any suggestions please?

It's an LPS tank with anemones.
Salinity 34.4
Calcium 450
Nitrate 12
Phosphates 0.04
Ammonia 0
Also running Carbon and GFO in reactor

Thanks in advance

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