Green Spotted Puffer (Tetraodon nigroviridis)

The Green Spotted Puffer (Tetraodon nigroviridis) is a fascinating pufferfish native to the brackish and coastal waters of Southeast Asia. With its vibrant green body speckled with black spots and its curious, almost "intelligent" behavior, it's a unique fish that immediately catches the eye. It recognizes its keeper, constantly explores its environment, and can live for many years with good care.

However, it requires very specific conditions and is not recommended for beginners.

Key Information:

• Adult Size: 12 to 17 cm

• Temperature: 24 to 28 °C

• pH: 7.5 to 8.5

• GH: 8 to 20 °dGH

• Salinity: brackish to marine waters as an adult (density 1.005 to 1.020 depending on size and age)

• Minimum Aquarium Size: 150 liters for a single individual

• Behavior: territorial, sometimes aggressive — to be kept alone or with great caution

• Diet: strictly carnivorous — snails, mussels, shrimp, crabs, worms; needs regular tooth wear to prevent overgrowth

This fish is not a good choice for a typical community tank. It requires special attention to its diet, water parameters, and a gradual transition from freshwater (when young) to brackish or saltwater (as an adult).