The ProAqua CombiSet Marin Test is a comprehensive test kit designed to test the primary levels inside your marine aquarium. The kit includes * 6 water tests * 3 curvettes * measuring spoon * syringe * colour charts and comparator block * Instructions and analysis record sheets. The kit is able to accurately measure levels of ammonia, nitrite, phosphate, carbon hardness, nitrate and ph. The ProAqua CombiSet Marin will hep you to identify potentially toxic water conditions and help ensure a safe and healthy environment for your fish, plants and corals.