Alligator gar
They have become an invasive species in Mainland China, where it can be purchased as an exotic pet fish. On September 4, 2009, an 3 ft 3 in (0.99 m) alligator gar was found in Tak Wah Park in Tsuen Wan, Hong Kong. Officials with Leisure and Cultural Services removed all the alligator gar from the ponds because they were concerned they would harm children.