After the application of JBL Oodinol 1000 the copper test Cu doesn’t detect any copper in the aquarium. Why is this?
To answer this question some further information is required in order to detect any errors that may have occurred.
1) Are the reagents of the copper test still all right? (best-before date has not expired and it has not be opened longer than about 6 – 9 months.)
2) Has the medication expired? (The best-before date can be found on the bottom of the folding box or the bottle.)
If the answer to the first question is yes and the answer to the second question is no, then please do the following:
1) Fill a 10 l bucket with tap water.
2) Carry out a copper test. The value should be 0 mg/l.
3) Dose JBL Oodinol 1000, following the instructions.
4) Stir the water thoroughly.
5) Carry out a copper test again. The value should be 0.3 mg/l.
6) If the test changes its colour it means both products are all right and the copper will then precipitate in the aquarium.
Copper as a metal is exposed to various processes. These include, for instance:
The precipitation of barely soluble copper salts. The copper mostly accumulates in the filter media. A good remedy for this is to replace the filter media and then repeat the dosage.
Accumulation in the sediments. A good remedy for this is to carry out a substantial water change and suction off the sediment (use a gravel cleaner). Afterwards repeat the treatment according to the instructions.
Consumption by organisms, especially aquatic plants (copper is an essential trace element for aquatic plants), is not usually an issue with the usual medical dosage.