This is the new Liquid Only test.  There are now two liquids, no powder. Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without...

A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a proper functioning reef aquarium should...

Spot Check - Get marine water testing for the 8 core elements of a saltwater fish tank from the comfort of home.  Use this mail in water test to spot check your marine aquarium and/or verify what your seeing on your home test kits. It is time to...