I got to finally test my water and the kh and gh was at 2. I finally realized that my curled leaves was from a calcium defeciency. So I checked out rexgrig and it showed a way to increase my gh. But my only problem is that I have no scale. My goal is to raise my gh by 2 and possibly my kh by 1. For a grand total of 3 kh/ 4 gh. My tank is 29 gallons. Does anyone know how much to add by teaspoon wise?