I’ve just set up a new aquarium using AF Bio Sand. I followed the instructions for using the sand, and after 3 days, I conducted my first test for ammonia and nitrite. The results showed no ammonia but nitrate presence in my aquarium. Does this mean my aquarium is ready? How long does the nitrogen cycle take with AF Bio Sand?

There is no straightforward answer to this question. Each tank matures differently. Using AF Bio Sand can expedite the completion of the nitrogen cycle, but for safety, we recommend introducing life after a minimum of 14-30 days. 3 days is definitely too early. For a new tank, we also recommend using the Life Bio Filtration Medium, which contains selected bacterial strains that also contribute to a more efficient closure of the nitrogen cycle.