Those things sound like piranhas lol. I had heard they are big eaters.
I used to dislike them because they eat my favorite green treefrogs but have accepted them. They are here to stay in Florida . I know some have caught blue morphs of them which are neat.
They are great mosquito eaters and will eat nigh geckoes and each other .
They are the "perfect" treefrog reproduce like crazy -eat anything that moves and hardy

Do you see any green treefrogs in your area ? I would think the Cuban treefrogs have wiped them out ?

Thanks