The government of the American state of Minnesota has banned the release of aquarium fish into lakes and rivers after such incidents threatened local flora and fauna.
Authorities in the American city of Burnsville in Minnesota have asked local residents not to release goldfish and ornamental carp into rivers and lakes. Former aquarium fish grow to enormous size, multiply intensively and pose a threat to the ecological balance and endemic aquatic life.
Minnesota Department of Natural Resources: “Some may think that ornamental fish can be a harmless addition to a local water body, but they are not. They grow bigger than you think and contribute to water quality degradation due to sediment contamination and uprooting of plants. ”
Earlier, similar warnings were issued in the US states of Virginia and Washington. The ban also applies in Australia and Canada.