API - Freshwater Hardness GH & KH Test Kit - 1 Kit Brand_Mason Vitamins Please replace the towel every

Please replace the towel every 3 months or so

they could help probiotics outnumber the bad bacteria that’s laying wake to negatively affect the balance of the intestinal flora

and naturally occurring live microorganisms (probiotics) to help maintain a healthy digestive system

The DEVA Vegan Prenatal Formula provides over 1500% of the RDA of this vitamin

API - Freshwater Hardness GH & KH Test Kit - 1 Kit Brand_Mason Vitamins Please replace the towel everyDESCRIPTION When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habitat. The API GH & KH Test Kit helps you duplicate the natural habitat of your fish to prevent stress, keeping them healthy! The kit includes 2 bottles of liquid reagent, 2 glass test tubes with snap tight caps, and step by step instructions. We recommend that you take a few minutes each week to