COLOMBO GH+ 2500ML/17.500L

Correct total hardness (GH) is a prerequisite for clean water and healthy plants and fish. GH stands for total hardness, which is the total amount of dissolved minerals in the water. Your plants and fish need these minerals for their growth and health. The GH value should be between 8 and 12 DH. Colombo GH + Dosage: 15 ml per 200 liters of water increases GH by 2 DH. First, dilute the required amount in a bucket of lukewarm water. Never pour it on the plants. If necessary, test the water quality every month and correctly.