Red Sea Magnesium Pro Refill 100 tests

Magnesium is one of the most vital elements in an aquarium due to its intreraction with the calcium and alkalinity balance. An aquarium without magnesium wouldn't allow to maintain alkalinity and calcium at natural levels.

Therefore, measuring magnesium regularly is crucial for the health and stability of your aquarium. The Red Sea Magnesium Pro Reagent Refill will allow you to measure magnesium to an exceptioanlly high accuracy of 20ppm. Its ease-of-use and professional results make it ideal for all aquarists regardless the level of knowledge.