Seriously though. Banning the importation on some or all ornamental fish is down out right ludicrous! Many people will be out of jobs, from the humble kid that cleans fish tanks at an aquarium to the AQUIS inspector that clears fish coming into a quarantine facility! This is a hobby that has been in Australia for a long time, a far bigger hobby than reptile keeping!
Fish are inspected twice when coming into the country and released from quarantine, certain fish have various time frames they have to remain in quarantine, and more 'disease' susceptible fish remain longer, i.e. 21 days. Most fish diseases are able to be checked through a microscope and treated with various medications, there are I believe to be 2 diseases that can 'slip through the system' these can affect most fish species but are more susceptible to gourami's species, as far as I am aware these 2 fish diseases can be picked up if %5 of the imported fish are euthanized and dissected the disease can be found.
Fish keeping is a fantastic hobby for the young and old and I like a lot of herp’s kept fish long before I started keeping reptiles.