There are hardly any marine water enthusiasts who don’t add trace elements to their aquariums. But many trace element supplements contain too much potassium, which in turn leads to green algae problems.
With help of the JBL Potassium Test it is now possible to get to the root of the problem and to identify the brands with excessive potassium amounts. The potassium content of the oceans is approx. 380 mg/l. When testing in saltwater aquariums the aquarium water needs to be diluted 1:30 (i.e. 10 ml sample water + 300 ml distilled or osmosis water).