Why your pet fish doesn't belong in the river, with Dr Mariah Millington

Questions, comments, feedback? Tap here to send us a message! What if your pet fish could wreak havoc on Australia's ecosystems? Turns out, that's precisely what they'll do if they end up in our waterways. In today's episode, Dr. Siwan Lovett sits down with freshwater fish biologist Dr Mariah Millington, who reveals the surprising capacity for non-native pet fish to damage and degrade Australia's…