Test for Copper (Cu)

The copper test is carried out in case of inexplainable dying of fish and when treating with copper-containing preparations.

Copper (Cu) is very toxic especially for invertebrates such as shrimps and crustaceans, but fish also react very sensitively to elevated copper levels. There are many possible causes for copper enrichment, including medical or algae combating treatments.

The sera Cu-Test allows checking quickly whether fish or invertebrates are safe.

Directions for use:

Shake reagent bottles well before using!
Do not allow tested water to contact aquarium or pond water!

1. Rinse the measurement vial several times with the water to be tested, then fill to the 10 ml mark. Dry the vial on the outside.
2. Add 7 drops of reagent 1 into the vial and shake the vial until the liquid is evenly distributed.
3. Add 7 drops of reagent 2 into the vial and shake the same manner.
4. Compare resulting colors after 5 minutes. Put the vial on the color chart and examine from above at natural daylight. Avoid direct sunlight.
5. Is the color dark blue, the sample contains more than 1 mg/l copper. Repeat the mea-surement with a diluted sample.
6. To do so, rinse the vial carefully with the water to be tested and fill up to the 5 ml mark. Top up to the 10 ml mark with distilled water. Use sera aqua-dest or a pharmaceutical grade distilled water. Repeat the test as mentioned with points 2. to 4.
7. Compare the colors once again with the colour chart.  Please do not forget to read the value given in the line “5 ml + 5 ml!”
8. Cleaning: Clean the vial thoroughly with tap water before and after each test.

Close reagent bottle immediately after use and do not exchange caps.
Store at room temperature and away from light. Keep locked up and out of the reach of children.
For testing ornamental fish aquariums and pond water only