carbonate hardness

My tests keep coming back as having a low carbonate hardness (kh). I have used Easy balance to try and level the kh out but always seems to be too low recently. Help please!

Hi, Who can think of a way to dose liquid KH or alk buffer using a dosing pump? It's easy to find solutions (no pun intended) for marine tanks OR powders for fresh water tanks. But I've not found a liquid product for fresh water. My tap water is 1KH so I need to dose alkalinity buffer, or...