csmaster
09-06-2003, 5:01 PM
Is KH or GH anything todo with hardness or is there a seperate test I need to hardness?
ChilDawg
09-06-2003, 5:24 PM
While an advertisement for their products, Tetra has a website devoted to explaining these two concepts.
http://www.tetra-fish.com/products/generalcarb.html