Jul 12, 2007 #1 D DanD Aquarium Advice Regular Joined Feb 25, 2007 Messages 55 Location New Jersey Anyone have a recommendation for a freshwater test kit for water hardness?
Jul 12, 2007 #2 Jchillin Aquarium Advice Addict Joined Nov 4, 2004 Messages 14,950 Location New York, NY (The Big Apple) I have used AP (Aquarium Pharmaceuticals) for both gh and kh kits. I would suggest getting both.