The Green Spotted Puffer fish (Tetraodon nigroviridis) is a member of the Tetraodontidae family. In nature, they live in areas of the world where freshwater meets saltwater and in the home aquarium, need to be housed in brackish water. LiveAquaria® recommends that their water contain a salinity of 1.0 to 1.2, and pH of 7.5-8.0.
Obtaining a Green Spotted Puffer fish can be a long-term commitment, as they can live up to 10 years. Sometimes they are referred to as a Spotted Puffer or Leopard Puffer fish because their coloring that consists of a green body with dark spots that contrasts against their white underbelly. Their heads have protruding eyes.
An aggressive larger fish that can grow to 6” or slightly larger at maturity, they can have a formidable presence in your brackish aquarium. Sought after because of the unique characteristics they possess; one is the ability to expand their belly to make themselves larger when they feel threatened. They also contain strong jaws and four crushing plates (instead of teeth) that will continue to grow throughout their lifetime, so they require a diet of shellfish that will help keep them trimmed. They also have strong pectoral fins that give them great maneuverability in the water. The Green Spotted Puffer fish does not have scales, so maintaining proper water conditions is important. Their tough leathery skin contains neurotoxins that help protect the Green Spotted Puffer fish from predators.
 
Care LevelModerate
TemperamentAggressive
Color FormBlack, Green, Yellow
DietCarnivore
Water Conditions72-78° F, pH 7.5-8.0, sg 1.005-1.025
Max. Size6"
FamilyTetraodontidae
Minimum Tank Size30 gallons