Product: Salifert Profi Test Oxygen
Oxygen is essential to all life forms. Especially the corals and marine fish require oxygen concentration to saturation levels
this depends on the low solubility of oxygen in sea water, whose values are ca. 5 to 7 ppm.
a) Add 4 drops of reagent O 2-1 and stir gently for 20 seconds. Do not shake because it could change the oxygen content of water
b) Add 4 drops of O 2-3 and stir gently for 15 sec. Let stand 3 minutes to seawater or 1 minute for fresh water.
c) Add 4 drops of O 2-2 and stir gently for 5 sec. after each drop. Wait 1 minute that the color develops.
d) Put the test tube open on the color chart in a white area and compare the colors looking from above. The values are in mg/l (ppm) of oxygen.
In marine water 7 mg/l is acceptable
Some fish require a higher oxygen concentration
Measuring range: approx. 2 to 14 ppm.