Seachem Hypersorb Size:250ml Potassium is a major element

Potassium is a major element in sea water like Calcium

and fill in where the red and greens would complete the spectrum

Put the open test tube on the white part of the color chart

This is a common contaminant in every liquid magnesium supplement on the market

Seachem Hypersorb Size:250ml Potassium is a major elementSeachem's HyperSorb is a premium synthetic adsorbent with outstanding organic removal capacity and ionic management abilities; it removes organic waste, toxic vapors and other pollutants. It is ideal for all types of water, including marine, brackish, and a broad spectrum of freshwater from acid to alkaline. In freshwater it will help stabilize the ionic balance and will help control ammonia, nitrite, and nitrate. It has all the advantages of carbon