Test Ca/ Mg Jbl

JBL Test Calcium Magnesium • Recommended level in marine aquariums: • approx .: 400-440 mg / l, Mg: 1200-1400 mg / l • Professional test to precisely determine the calcium and magnesium level in all marine aquariums. • Insufficient levels of calcium and magnesium affect the growth of corals and stunt the growth of the attractive red calciferous algae.