Barred rabbitfish

Siganus doliatus

Also known as Scribbled Rabbitfish, Barred Spinefoot, Blue-lined Rabbitfish, Pencilled Rabbitfish

SaltwaterFish

Care at a glance

Temperature
75–81°F
24–27°C
pH
8.1–8.4
Adult size
9.8 in
25 cm
Minimum tank
106 gal
400 L
Temperament
Peaceful
Social behavior
Solitary
Swim level
Middle
Difficulty
Easy
Breeding
No record
Rarity
Common
Reef safe
Reef safe with caution
Family
Siganidae
Origin
Western Pacific from Indonesia to the Great Barrier Reef and Micronesia, on lagoon and outer reefs.

Overview

Give it a 400 litre or larger tank with open swimming room and algae-covered rock at 24 to 27 C. It is a great algae grazer and generally coral-safe, but it can nip soft corals such as Xenia when hungry, so keep it well fed and treat it as reef safe with caution. Feed plenty of nori, spirulina and marine algae several times a day plus some prepared foods. Handle it carefully, since the fin spines are venomous.

In the wild

The barred rabbitfish is a blue-lined, yellow-backed grazer marked with dark bars, often seen in pairs on lagoon and outer reefs. It spends the day eating algae off the rock. It is peaceful and hardy but armed with venomous spines. Adults are strong, active algae-eaters.

Good to know

Siganus doliatus reaches about 25 cm and, like all rabbitfish, carries venomous spines in its dorsal, anal and pelvic fins. A jab produces a painful sting similar to a bee sting. It is an efficient herbivore that helps control filamentous and turf algae.

Did you know

It raises venomous fin spines when threatened, so most predators, and careful aquarists, leave it well alone.

Weekly picks

Tank mates

Barred rabbitfish is a peaceful, solitary species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Check the full mix in the stocking calculator

Common questions

What size tank does a Barred rabbitfish need?

A Barred rabbitfish needs at least 106 gal (400 L). It spends most of its time in the middle.

What temperature and pH does a Barred rabbitfish need?

A Barred rabbitfish is comfortable at 75–81°F (24–27°C) with a pH of 8.1–8.4.

How big does a Barred rabbitfish get?

An adult Barred rabbitfish reaches about 9.8 in (25 cm).

Related species