Sera Chlorine test (Cl)

The sera Cl-Test is a water test to check the chlorine content in the freshwater aquarium, as well as in garden ponds.

Determine water values
pH value, carbonate hardness (KH), ammonium and nitrite are among the most important water parameters. Extreme deviations from the target values can suddenly become an acute danger to life. Whenever the appearance or behaviour of the fish is conspicuous, or other peculiarities (eg sudden dying of aquatic plants) in the aquarium are noticeable, the basic water values should be checked first. For routine control, the easy-to-use test strips can be used. For more accurate results, we recommend the test of the sera aqua-test box in a sturdy plastic case. Total hardness, nitrate, nitrite, phosphate, iron, copper, chlorine, silicate and oxygen should be known to the experienced aquarist as averages in his aquarium. Checking these values every now and then is usually enough. If suspected (eg poisoning, algae problems, shortness of breath) these parameters should be examined more closely.

Drinking water is often disinfected with added chlorine. Chlorine destroys filter bacteria and has a strong corrosive effect on the gills and mucous membranes of fish. With the sera chlorine test, you can easily determine if the tap water contains adverse chlorine levels.

Our expert Oliver Knott recommends:

With the sera Cl-Test you can check your chlorine content quickly and very precisely by means of a drop test!