Api - Fresh Water Master Test Kit Shell grit is made of

Shell grit is made of ground up

Simulates the heat provided by the sun

ncludes Pro LX Fetch ball with reflective 3M core

Australian wild kangaroo packs a punch when it comes to protein

Sweet Potato

Api - Fresh Water Master Test Kit Shell grit is made ofThe API FRESHWATER MASTER TEST KIT measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, nitrite, and nitrate. With scientific accuracy for professional results, the FRESHWATER MASTER TEST KIT comes with 4 test tubes and a convenient holding tub for easy storage. The kit also includes a step by step instruction booklet with a color chart that provides information on how to correct