Description
Figure 8 Pufferfish – Bright, Bold, and Full of Character
(Tetraodon biocellatus)
The Figure 8 Pufferfish (Tetraodon biocellatus) is a small, eye-catching species known for its vibrant green and black markings that resemble the number “8.” Native to Southeast Asia’s brackish waters, this puffer is a favorite among aquarists for its curious personality, intelligent behavior, and truly unique appearance. It's ideal for hobbyists ready to venture into the rewarding world of brackish or species-specific tanks.
Key Features:
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Striking Pattern: Lime-green top with distinct black “figure 8” markings and a creamy white belly make it a standout in any setup.
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Intelligent & Interactive: Recognizes its keeper, explores its environment, and often watches from the glass—these puffers have real personality.
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Compact Size: Grows to about 6–8 cm (2.5–3 inches), making it ideal for smaller species-only or brackish tanks.
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Specialized Care: Best suited for aquarists with some experience due to its dietary needs and water preferences.
Tank Requirements:
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Minimum tank size: 75 liters (20 gallons) for a single puffer
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Temperature: 24°C–28°C (75°F–82°F)
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pH: 7.5–8.5
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Brackish water recommended (low salinity around 1.005–1.008 SG) for long-term health
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Provide plenty of hiding spots, rocks, and décor to satisfy their curious nature
Tank Mates:
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Best kept solo or with extreme caution in a species-only tank
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Can be aggressive or nippy, especially toward slow or long-finned tankmates
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Never house with small, passive fish or inverts like snails and shrimp (they're a snack!)
Feeding Tips:
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Carnivorous with a strong need for hard-shelled foods to wear down constantly growing teeth
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Feed a varied diet of snails, bloodworms, clams, krill, and shrimp
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Avoid flakes or pellets—live or frozen foods are best
Why Choose the Figure 8 Puffer?
If you're looking for a fish that's as interactive as it is beautiful, the Figure 8 Pufferfish is a perfect choice. With a face full of attitude and a design like no other, it brings life and excitement to any properly maintained aquarium.
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