What Is dH In A Fish Tank?
water hardness follows the following guidelines. The unit dH means ” degree hardness “, while ppm means “parts per million”, which is roughly equivalent to mg/L in water. 1 unit dH equals 17.8 ppm CaCO3. What is a normal KH and GH for aquariums? What is the Ideal GH Level for Aquariums? As with KH, … Read more