A Pacu was recently caught in the Grand River in Michigan by Isa DeVos. This is likely another example of an aquarium owner releasing his non-native fish in to the local waters and not a sign that we’re being invaded by another invasive species.
Pacu, a vegetarian relative of the piranha, can grow very large over their life span (up to 60lbs!) and easily out grow even a large aquarium. Many fish owners don’t consider how large their pets can grow, or even how long the can live for. I’m sure this owner thought they were doing the human thing by releasing them, but in fact it’s the opposite as they’re now endangering native species.
You may also recall an earlier post about Adam Eibling’s “impossible catch” of a 5lb Pacu in Ohio.