MAGNESIUM MARINE WATER TEST KIT
 
For the growth of their calcareous skeleton corals will absorb minerals
from the surrounding water. Most important elements are Carbonates,
Calcium and magnesium. As soon as corals are added to the aquarium
it is essentials to test these values at least weekly.
 
Colombo have produced test kits that are developed especially for
seawater. These tests give the best results!