Seatest PO4 from Aquarium Systems is a box of 40 tests for the phosphate content in your freshwater and saltwater aquarium . PO4 phosphate is a residue from the decomposition of organic matter such as uneaten food, fish excrement… It has the ability to cause algae growth.
Seatest Mg from Aquarium Systems is a box of 40 tests to analyze your magnesium level in your marine aquarium . Magnesium Mg is the third most important element in the composition of seawater and is essential for many biological processes , including photosynthesis and cell division.
Seatest Ca from Aquarium Systems is a box of 40 tests to test the level of calcium in your reef aquarium . Calcium is one of the basic components of seawater and is very useful for corals, invertebrates and red calcareous algae, which consume calcium to build bones .
Seatest KH from Aquarium Systems is a box for performing 100 tests for the KH content in a seawater aquarium . Bicarbonate (KH) has a stabilizing effect on pH changes in water. At the end of the biological process, the KH and pH of the water will change over time.