202 specimens of Astronotus ocellatus (Oscars), were collected from a freshwater lake in the state of Amapá, northern Brazil.
A total of 6,308,912
parasites belonging to 11 different taxa were found. Protozoa was the most abundant; flukes, worms were also prevalent and abundant.
It would be interesting to see figures on commercially bred fish.
And to think we want to bring these into our homes.
Maybe there is a good argument for a QT tank with a working UV sterilizer.