The reality is actually much worse. They are everywhere in Florida. People kept them as pets and didn't want them when they outgrew their tanks, or they escaped. I see them travel at night on the banks of isolated lakes. Most of their traveling is done through storm drains in just inches of water. They are also quick learners. One stupid snakehead is not a problem. Ten snakeheads with one smart snakehead in the bunch is a problem. They tend to copy behavior. If one snakehead figures out how to get escape, the rest will follow it. They can simply push the lid right off an enclosure to escape.They eat everything and the problem is their survivability. It will ALWAYS be the last fish standing in a small eco catastrophe due to their ability to breath air for one to two days. They are illegal here for a reason. They destroy the ecosystem.