Arrowhead Puffer
Tetraodontidae sp.
Arrowhead Puffer (Tetraodontidae sp.) — Advanced care, Aggressive, under Other. Minimum tank in the app: 26 US gal min; aim for 72–79°F and pH 7–8. The Arrowhead Puffer appeals to experienced aquarists who appreciate its unique predatory nature and challenging care requirements.

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Asia / South America
- East & Southeast Asia
- South America
Regional colours match the stocking calculator’s origin map.
Arrowhead Puffer Tank Setup
Create a balanced environment that prioritizes both open swimming space and ample hiding spots, using structures like rocks and driftwood to delineate territory. A sandy substrate mimics their natural habitat, while moderate lighting can encourage natural behaviors without overwhelming them. Consider water flow to emulate their native conditions, fostering a more active puffer.
What Do Arrowhead Puffers Eat?
Arrowhead Puffers are opportunistic feeders with a preference for meaty diets, including snails and crustaceans. They can be assertive during feeding times, so ensure that they are adequately fed to minimize competition.
Arrowhead Puffer Tank Mates
Ideal tank mates should be robust and fast, avoiding long-finned or slow-moving species that may trigger fin-nipping. Larger, active fish like certain cichlids can coexist, but smaller or delicate species are at risk. Given their solitary nature, only one Arrowhead Puffer should be maintained per tank to prevent intraspecies aggression.
Are Arrowhead Puffers Good for Beginners?
This sits in the advanced range in the app. Strong filtration, stable chemistry, and reading up before purchase matter more than a catchy shop name. Aquarists often underestimate the Arrowhead Puffer's aggression and fin-nipping tendencies, leading to incompatible tank setups. Neglecting the need for a spacious and structured environment can result in stress and territorial disputes, while failing to provide a varied diet can adversely affect their health.
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