Monster Aquarium on Instagram: "The Mbu puffer fish is the largest freshwater puffer in the world, known for its massive size, strong personality, and incredible intelligence. Native to the Congo River Basin, it requires an extremely large aquarium, powerful filtration, and an experienced keeper. With its curious behavior and powerful beak capable of crushing hard shells, the Mbu puffer is a true monster fish centerpiece that commands respect and commitment. #mbupuffer #mbupufferfish #freshwater