This week we talk to Paul Harrison from My Catch Australia about the booming population of Tilapia along the east coast. Once an aquarium fish, now a noxious bio security threat to a plethora of Australian native fish species, we talk eradication, what to do, how you can help and the road ahead which kind of looks gloomy as this Mozambique mouth brooder muscles in.  See omnystudio.com/listener for privacy information.