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.

Skunk cleaner shrimp
Lysmata amboinensis
Saltwater2.4 in (6 cm) · 20 gal (75 L)73–81°F (23–27°C)
Ring cowrie
Monetaria annulus
Saltwater1.2 in (3 cm) · 20 gal (75 L)75–81°F (24–27°C)
Skilletfish
Gobiesox strumosus
Saltwater3.1 in (8 cm) · 20 gal (76 L)72–79°F (22–26°C)
Swallowtail angelfish
Genicanthus melanospilos
Saltwater7.1 in (18 cm) · 106 gal (400 L)72–79°F (22–26°C)
Tiger / strawberry conch
Conomurex luhuanus
Saltwater2.8 in (7 cm) · 20 gal (75 L)75–81°F (24–27°C)
Flametail blenny
Enchelyurus flavipes
Saltwater3 in (7.5 cm) · 29 gal (110 L)72–79°F (22–26°C)
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
9.4 in (24 cm)124 gal (470 L)75–81°F (24–27°C)Bicolor foxface
Siganus uspi
9.4 in (24 cm) · 124 gal (470 L)
9.4 in (24 cm)75 gal (285 L)72–79°F (22–26°C)Foxface rabbitfish
Siganus vulpinus
9.4 in (24 cm) · 75 gal (285 L)
9.1 in (23 cm)124 gal (470 L)75–81°F (24–27°C)Magnificent foxface
Siganus magnificus
9.1 in (23 cm) · 124 gal (470 L)
11.8 in (30 cm)119 gal (450 L)75–81°F (24–27°C)Two-barred rabbitfish
Siganus virgatus
11.8 in (30 cm) · 119 gal (450 L)
7.9 in (20 cm)70 gal (265 L)75–81°F (24–27°C)One-spot foxface
Siganus unimaculatus
7.9 in (20 cm) · 70 gal (265 L)
15.7 in (40 cm)120 gal (454 L)72–79°F (22–26°C)Dusky rabbitfish
Siganus fuscescens
15.7 in (40 cm) · 120 gal (454 L)
