Spotted Puffer
Tetraodon nigroviridis

Care Level




Reef Compatible


Plant Safe


Max Size

5 - 8

Minimum Tank Size



Black, Green, White, Yellow



Water Conditions

72-82 F, dGH 6-18, pH 7.2-8.2


General: The spotted puffer is from the brackish estuaries of Indonesia and Southeast Asia. Although the spotted puffer naturally occupy brackish waters, they can be converted to freshwater conditions. If converted to freshwater, spotted puffer will likely have a shortened lifespan and will be less likely to reproduce. Normally, the spotted puffer will reach a length of up to 7 inches.

Dimorphism: The spotted puffer male will develop a brown stripe on the ventral half, from front to back. The male will also develop light blue stripes around the eyes. Female spotted puffer will not develop either of these stripes, and will take on a more gravid appearance when ready to reproduce.

Fecundity: The spotted puffer may produce over 200 eggs per clutch. There are multiple ways to encourage reproductive behaviors of the spotted puffer. These include maintaining a neutral pH and intermediate water hardness along with incorporating aquatic plant life. Due to being a brackish species, maintaining a salinity of 1.01ppt or slightly higher will trigger the most natural behavior of spotted puffer.

Water Chemistry: 72-82 F, dGH 6-18, pH 7.2-8.2. Brackish water with a salinity level around 1.01ppt is necessary for long term health and well-being.

Aquarium Diet: Spotted puffers are carnivores and will accept brine shrimp, ghost shrimp, mollusk, mysis shrimp, and krill. It is often ideal to feed multiple times per day, while frequently performing water changes in order to manage aggression.

Compatibility: The spotted puffer is considered to be pugnacious and is better off being alone or with other spotted puffer. kuhli loaches (Pangio kuhlii), and giant danios (Devario aequipinnatus) will typically be fast enough to live with the spotted puffer.

Spotted Puffer Videos

Author: Grant Stevens