Check Out This Photo of a Pet Fish That Grew Into a Feral Aquatic Killer

This is what can happen when you ditch your small pet fish into a local lake. 

According to researchers at Murdoch University in Australia a pet fish introduced into a local lake or stream can destroy the eco-system. 

Once they're in a larger environment the fish are able to grow at an incredible rate. 

A study published last year by Murdoch University’s Freshwater Fish Group and Fish Health Unit claims “introduced freshwater fishes are one of the major global threats to aquatic biodiversity.”

“They are eating up the food resources and using up the habitat that our native fish would otherwise be using,” Jeff Cosgrove, a Postdoctoral Research Fellow at Murdoch University, told the Australian Broadcasting Corporation.