City of Burnsville, Minnesota
Massive goldfish have grown into an invasive species in a lake in Minnesota after people started releasing their pet fish into the water.
Officials in Burnsville, Minnesota, said last week that releasing pet goldfish into lakes and ponds can wreak havoc on an ecosystem.
"Please don't release your pet goldfish into ponds and lakes!" the city wrote on Facebook. "They grow bigger than you think and contribute to poor water quality by mucking up the bottom sediments and uprooting plants."
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