Nitrite levels remains at 0.3 mg/l for a longer time
I have a problem with my aquarium: the nitrite level does not go below 0.3 mg/l since I added fish after an approx. 4 week activation period - the test unfortunately still changes its color. I already carried out partial water changes, but the value does not go down. I did not find a dead fish.
Hello,
the nitrite peak may indeed occur or be present later than after 4 weeks. Using a really highly active filter medium (sera siporax Professional) and a biostarter (sera bio nitrivec) will improve the situation in that case.
Best regards
sera GmbH
Dr. Bodo Schnell