What exactly does a reading of 9 KH mean?
wester97 Member Mar 19, 2004 #2 It tells you how hard your water is. The harder it is, the harder it will be to change the pH. Saltwater fish like it to be from 8 - 10 dH.
It tells you how hard your water is. The harder it is, the harder it will be to change the pH. Saltwater fish like it to be from 8 - 10 dH.
