An all in one high quality test kit from D-D to monitor Calcium, Alkalinity and Magnesium in reef aquaria. These three important elements provide calcium and carbonates for Coral growth whilst also providing stable water chemistry when maintained at natural levels. Multi Kit can be used as part of a complete testing regime that includes the D-D Phosphate, Nitrate and Iodine test kits for best results and to help monitor complete aquarium health and nutrient levels. The D-D Multi Test Kit includes liquid tests for the three most commonly tested parameters by marine or reef aquarists, those of calcium, magnesium and alkalinity. All three parameters have a natural balance relative to... Read more»