Hi everyone ,I have a question , because my ph at daytime 8.1 , at nighttime 8.0 ,I live L.A. here fish store told me
ph better keep on8.3 to 8.4 right now I use kalkwasser (KENT) ph.go to 8.3 now nighttime , before I test CA was
over 600 .I know range 400 -450 .right now ca is around 500 ...