Species Description…

Scientific Name: Canthigaster jactator

Common Name: Hawaiian Whitespotted Toby

Species Group: Pufferfish

Habitat: Reef Safe with Caution

Care Level: Intermediate

Temperament: Semi-aggressive

Diet Type: Omnivore

Role in Aquarium: Showpiece Fish

Max Fish Length: 4 (inches)

Min Aquarium Size: 50 (gallons)

Native Range: Central Pacific, specifically endemic to Hawaii

Canthigaster Jactator - The Hawaiian Whitespotted Toby

Canthigaster Jactator (The Hawaiian Whitespotted Toby)

Native to the Hawaiian Islands, commonly found in coral reefs, rocky ledges, and coastal lagoons.
Recognized for its compact body, brownish-tan coloration, and bright blue streaks along its face and body.
A small but bold species known for its curious and playful personality.
Capable of inflating its body as a defense mechanism when threatened.
Requires a well-structured aquarium with plenty of hiding spots and open swimming areas.

Omnivorous, feeding on algae, small crustaceans, and invertebrates in the wild.
Accepts frozen shrimp, mysis shrimp, marine pellets, and finely chopped seafood.
Requires hard-shelled foods such as snails or clams to naturally grind down its continuously growing teeth.
Multiple small feedings per day ensure optimal health and prevent malnutrition.
A varied diet supports strong coloration and overall vitality.

Typically found in shallow reefs, rocky outcrops, and sandy lagoon environments.
Prefers stable water conditions with moderate water movement.
Aquarium setups should include live rock structures, caves, and sandy substrate for natural foraging.
Thrives in well-maintained marine tanks with a balanced environment.
Providing hiding spaces and natural decor reduces stress and encourages natural behaviors.

Optimal water temperature: 74-80°F (23-27°C) to support a healthy immune system.
Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
Requires efficient filtration and regular water changes to maintain water quality.
Should be kept in a calm environment to minimize stress.
Providing an enriched habitat and a varied diet supports longevity and overall well-being.

Generally peaceful but may nip at slow-moving fish with long fins.
Compatible with tangs, wrasses, and other semi-aggressive fish.
Not reef-safe, as it may prey on small invertebrates such as shrimp and crabs.
Should not be housed with overly aggressive fish that may cause stress or outcompete it for food.
Providing enough space and a structured environment helps minimize territorial behavior.

A curious and active species that enjoys exploring its surroundings.
Often seen picking at rock surfaces and searching for small prey.
Capable of inflating its body when startled, though this behavior should not be intentionally provoked.
Providing rock formations and varied tank decor promotes natural foraging behavior.
Over time, it can become highly interactive with caretakers and recognize feeding routines.