Siganus corallinus
Source: JJPhoto.dk

Facts

Latin name Siganus corallinus - (Valenciennes, 1835)
Common name Blue-spotted spinefoot
Family Siganidae - Siganus
Origin East Indian Ocean, West Indian Ocean, Australia, Japan, Indonesia, East Pacific, Central/West Pacific
Max length 35.0 cm (13.8")

As aquarium fish

Minimum volume 1000 l (264 gal)
Hardiness Average
Suitable for aquarium Suitable for most aquarium
Reef safe Often reef safe
Aggressiveness Mostly peaceful but might be aggressive towards similar species

Food

Maybee
  • Soft coral
  • Large polyp stone coral (LPS)
Mostly
  • Small crustaceans (Krill, mysis, artemia...)
Recommended
  • Microalgea (Eg. spirulina)
  • Macroalgea (Eg. seaweed / nori)

Venomous

This species is venomous, but it´s toxin is rarely dangerous to humans. It can however cause considerable pain.

In case of poisoning it is vital to have as much information as possible regarding the species/poison. Have telephone numbers for the poison hotline close to the aquarium.

Since different people can have different reactions to poisons, take precautions necessary to ensure personal safety and that of the surroundings.
This poison can be dangerous if suffering from allergies.

High water quality

This species demands a high water quality.

Amongst other things it means, that water must be properly oxygenated.

Demand a very large aquarium when fully grown

This species need a very large aquarium when fully grown.

Exactly how big the aquarium should be is hard to say, but the size of this species is such, that it cannot normally be kept in a domestic aquarium.

Reef safe, when well fed

This species can be found nibbling soft coral and LPS if there is insufficient food available.

Well established aquarium with algae

These fish should be kept in a well run aquarium where they can "graze" algae from rocks and stones.

If there are insufficient algae on the rocks, it is important to feed more frequently and supplement with algae rich food e.g. Spirulina. 

Requires plenty of space for swimming.

This species revels in swimming and requires an aquarium with ample space.

Algae Eaters

Even though these fish enjoy a diverse type of frozen foods, it is imperative that its primary food, is algae based, thus ensuring that the fish`s immune system remains healthy.

This can, for example, be plant based fish flakes, Nori seaweed or similar.

Lives in a pair

This species can live as a pair (male and female).

Hiding places

This species needs good hiding places, for example, between live rocks.

Family description (Siganidae)

Rabbit fish (siganidae) are known for being effective algae eaters.
These fish are often used to fight bubble algae, which can otherwise be hard to remove.

It can be challenging to keep them well fed, if there is not sufficient algae in the aquarium.

They all have toxic spines on their backs, therefore be cautious, although they will mostly swim away and hide, when your hands are in the aquarium. If these fish feel threatened they will hide next to a rock and change colour and pattern. They can appear "ill", but this is their natural camouflage

These fish are not suitable for small aquaria, as they can end up swimming around in the same circle all day long.

FishBase

Aquarium trade Yes
Distribution Indo-West Pacific: Aldabra Islands, Seychelles, Maldives, Andaman Sea, Thailand, Indonesia, Peninsular Malaysia, Sabah, Singapore, Viet Nam, Philippines, Ryukyu Islands, Ogasawara Islands, Palau, ?Kiribati, Papua New Guinea, Solomon Islands, Australia, V
English common names Indian coral rabbitfish, Coral rabbitfish, Blue-spotted spinefoot
Danish common names Blåplettet kaninfisk
French common names Cordonnier brisant, Picot corail

References and further reading

About references

James W. Fatherree. 2013. Aquarium Fish: Fishes of the Genus Siganus: The Rabbitfishes - Advanced Aquarist - (English)
Jeff Kurtz. 2007. A Warren of Righteous Rabbitfishes - Tropical Fish Hobbyist Magazine - (English)
Bob Fenner. The Fishes We Call Rabbits, Family Siganidae - Wet Web Media - (English)

Froese, R. and D. Pauly. Editors. 2014. FishBase. World Wide Web electronic publication. www.fishbase.org, version (08/2014).

Tags

venomous, herbivore, algae eater, pair couple
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