With DabV mounted on the outside of the glass, the aquarium has been left without being cleaned for almost 15 weeks, only with the replacement of a liter of water per week.
Apparently, there is an ecological balance in the water so that the small amounts of E. coli and coliform bacteria from the feces do not have a negative effect on the conditions in the water. Nor on the health and well-being of the fish.
Professor Emeritus Tor-Henning
