Figure 8 Puffer

Figure 8 Puffer (Tetraodon biocellatus)

The Figure 8 Puffer is a small, intelligent brackish water fish known for its striking pattern that resembles the number eight on its body. These curious and interactive fish are popular among aquarists for their unique personalities, but they require specific care and are best suited for experienced hobbyists.

Care Level: ✅ Moderate

Scientific Name: Tetraodon biocellatus
Temperament: ✅ Semi-aggressive
Maximum Size: ✅ Up to 3 inches (7.5 cm)
Diet: ✅ Carnivore – snails, frozen or live foods such as bloodworms, brine shrimp, and crustaceans
Minimum Tank Size: ✅ 15 gallons (57 L)
Water Temperature: ✅ 75–82°F (24–28°C)
pH Range: ✅ 7.5–8.5
Compatibility: ✅ Best kept alone or with carefully selected brackish tank mates

Figure 8 Puffers thrive in lightly brackish water and require a well-maintained aquarium with stable salinity levels. They are known for their strong beaks, which continuously grow and must be worn down by feeding hard-shelled foods like snails. These fish are highly interactive and often recognize their owners.

Please Note: Figure 8 Puffers can be aggressive and may nip at tank mates. They require specialized care, including a proper brackish setup and a varied diet to maintain their health.