Prosecutors face Monday deadline to file charges in deaths of Shanann Watts, daughters
Latest updates: Homicides of Shanann Watts, daughters

Thousands of goldfish threaten ecosystem at lake in Boulder County

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

BOULDER COUNTY, Colo. -- A favorite childhood pet for some people is causing chaos in one Boulder County lake.

Thousands of goldfish are threatening the ecosystem at Teller Lake.

Crews have the tough task of getting rid of all of the fish, as Dan Daru shows us in his video report above.