Thousands of goldfish are invading a Colorado Lake, threatening the health of native animals and plants.
Rangers first noticed the estimated three to four thousand exotic fish swimming in Boulder's Teller Lake #5 in March.
The entire population is thought to have originated from four or five pet goldfish. It's estimated that 2 years have passed since they were tossed into the lake.
Due to the danger these non-native fish pose to the aquatic ecosystem, Colorado Parks and Wildlife is considering removing them completely by draining the lake or by using electroshocking to stun them, allowing for easier capture.
The fish collected will then likely be used to feed animals at a raptor rehabilitation center.
Officials continue to warn people against dumping unwanted pets into public waters which is a harmful and illegal action.