Ideal Water Hardness for a Planted Aquarium (KH & GH)
Today even most novice aquarists know that water can be “hard” or “soft.” Hardening agents are the salts of calcium and magnesium, primarily. Calcium and magnesium are earth alkaline metals. Water that contains many of these mineral salts is called hard; water that contains little of them is called soft. Aquarists state the water hardness … Read more
