Avocado Puffer (Auriglobus modestus) is a uniquely colored freshwater puffer — the smooth, largely scaleless body displays a uniform green to olive-green coloration that genuinely resembles the skin of an avocado. It belongs to the genus Auriglobus, a group of smooth-bodied puffers distinct from the more common Tetraodon and Pao genera. A specialist fish with a higher aggression level than most.
Feeding & Care Tip: Hikari Clams on the Half Shell and Hikari Frozen or Freeze-Dried Bloodworms are the primary staples. Whole mussels, prawns, and large snails are essential for dental wear — feed hard-shelled foods several times per week. Large puffers have powerful beaks and should always be fed with tongs or a feeding stick — never by hand. Feed 2–3 times per week; puffers have slow metabolisms and do not need daily feeding.
Native to the rivers and floodplain waters of Southeast Asia — Thailand, Malaysia, and the Mekong drainage. The genus Auriglobus is characterized by the relatively smooth body skin compared to the rougher texture of most freshwater puffers. Rarely imported — a collector find for dedicated puffer enthusiasts.
All puffer fish have fused, beak-like teeth that grow continuously throughout their lives. Hard foods — snails, shellfish, and crustaceans with intact shells — are essential for wearing down the teeth. A puffer fed only soft foods will eventually develop overgrown teeth that prevent eating, a condition requiring veterinary intervention. Snails and hard-shelled foods are dental care, not just food. The Avocado Puffer is more aggressive than average and should be considered a species-only fish in all but the largest aquariums. Hard foods are essential for dental health.
Keep singly. The avocado-green coloration is most vivid in well-conditioned fish. A specimen tank allows this unusual species to be appreciated fully.
| Difficulty | Moderate — Advanced |
| Temperament | Aggressive — species tank only |
| Typical Adult Size | 5.0 inches (12.5 cm) |
| Min. Group Size | Singly |
| Ideal Temp | 74–82°F (23–28°C) |
| Ideal pH | 6.5–7.5 |
| Ideal GH | 5–15 dGH |
| Ideal KH | 2–8 dKH |
| Staple Food | Hikari Clams on the Half Shell; Hikari Frozen or Freeze-Dried Bloodworms |
| Treat / Supplement | Whole mussels; prawns; large snails (dental essential) |
| Origin | Southeast Asia — Thailand, Malaysia, Mekong drainage |
| Notes | Genus Auriglobus — smooth-bodied puffer. Uniform avocado-green coloration. Higher aggression than average. Rarely imported. Snail colony essential. |
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