Canthigaster bennetti
The Toby Pufferfish (Canthigaster bennetti) is a small, colorful marine fish native to the western Pacific Ocean. This species is known for its distinctive appearance and peaceful behavior in well-maintained aquariums.
Key Features
- Size: 1″ to 1.5″ (2.5 to 3.8 cm)
- Color: Bright yellow with dark spots and a blue-tinted body
- Behavior: Calm and social, prefers groups of at least 6
- Water Conditions: 76°F to 82°F (24°C to 28°C), pH 8.1–8.4
| Parameter | Value |
|---|---|
| Species | Canthigaster bennetti |
| Size | 1″ to 1.5″ |
| Origin | Western Pacific Ocean |
| Temperament | Peaceful, social |
FAQ
What is the ideal tank size for a Toby Pufferfish?
A minimum of 20 gallons is recommended to provide adequate space for a group of Toby Pufferfish, as they are social and thrive in groups.
Is the Toby Pufferfish aggressive toward other fish?
No, the Toby Pufferfish is generally peaceful and does not show aggression toward other fish when kept in appropriate group sizes and tank conditions.
How long does it take for a Toby Pufferfish to reach full size?
Toby Pufferfish grow slowly and typically reach their full size of 1″ to 1.5″ over 6 to 12 months in a stable aquarium environment.

Lisa Peake –
The Toby Pufferfish arrived healthy and active. It has adapted well to my 30-gallon tank with a group of five. The fish is vibrant and stays calm, even with other species. Easy to care for once the water parameters are stable.
Kevin Mackay –
I bought this for my reef tank, and it’s been a pleasant addition. The fish is colorful and doesn’t stress the other inhabitants. I keep it in a group, and it seems to enjoy swimming with others.
Wendy Payne –
Great quality and packaging. The fish is active and shows no signs of stress. I’ve maintained a consistent temperature and pH, and it’s thriving. Would recommend to other reef hobbyists.