API Test Kit - GH/KH General & Carbonate Hardness Rubbers Ropes & Outdoor Favourites 6 and includes approximately 250

6 and includes approximately 250 tests per kit

Give this excellent gecko food a try

Trapped air auto-evacuated every 12 hours to ensure maximum efficiency

Cichlid Omnivore Small Pellets are made with easy-to-digest ingredients

Seaweed reduces color fading with continued use

API Test Kit - GH/KH General & Carbonate Hardness Rubbers Ropes & Outdoor Favourites 6 and includes approximately 250Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fish caused by rapid pH shifts, which result from low KH levels and helps aquarists duplicate the natural habitat of their fish.