At feeding time, Dale – a freshwater Mbu puffer, one of the largest puffer fish species – flaps his fins like oversized wings and glides toward his tank corner. He's also the unofficial mascot of Fish ...

This video follows the process of training a baby MBU puffer to eat live crayfish. It shows how the fish responds over time. The focus is on behavior and adaptation. The result is gradual progress.

MBU puffers are among the most rewarding fish to keep and among the most frustrating to feed. Getting a young one onto live prey is both a practical necessity and a milestone moment for anyone keeping ...