I my kh is really low. I did water changes and it did not seem to bring it up at all. What product can I use to bring it up to the right level? Is using api PH up sufficient?
My tap water comes from a well and has no chlorine. It is VERY hard. GH tests at 300ppm. KH tests at 180ppm out of the tap. But the KH in the tank has dropped to a reading of 40ppm!!
My tank is only 20 gallons. I know a larger tank is better but that is what I have (long story). There are no...