Can currents also be too strong?
Can currents also be too strong for the fish so that they become tired?
yes, this is indeed possible, especially with fish that are not good and powerful swimmers (all veiltail breeding forms, among others)! Water current should by all means be reduced if the fish permanently have to swim against it with their full power as to prevent being dragged away, even if this requires another filter.
Dr. Bodo Schnell