What Alkalinity supplement would you reccomend that I can use regularly and will help raise my PH?
I have this problem on PH. It is always on the lower side (around 7.85). If I added kalkwaser (i think i speeld it wrongly), the ph will rise to around 7.95 but would return back to 7.85 after a day. I am using a PH monitor and this is calibrated and confirmed reading correct PH. I don't have corals but only two fish and lots of live rock with corraline algae.
I suspect that my alkalinity is low but have not measured yet (have not bought the test kit yet).
Any help on those who experience this will be appreciated.