Is the Magnificent Foxface reef safe?

Yes, with caution. They are primarily herbivores and typically ignore corals, but if they are underfed, they may begin nipping at fleshy LPS corals or zoanthids.

How venomous is a Magnificent Foxface?

Their spines contain a venom that causes intense pain, swelling, and redness, comparable to a severe bee or wasp sting. While rarely fatal to humans, extreme care must be taken during tank maintenance.

Why has my Foxface turned brown and spotty?

This is entirely normal. They utilise a camouflage mechanism that changes their striking white and black colours into a mottled brown pattern when stressed, scared, or resting at night.

What is the best way to feed a Magnificent Foxface?

Provide a continuous supply of algae by using a seaweed clip with dried nori. Supplement this daily with spirulina flakes and occasional meaty foods like mysis shrimp to ensure complete nutrition.

Can I keep two Foxfaces together?

It is generally not recommended unless you are purchasing a known, established mated pair. In the confines of an aquarium, two unbonded Foxfaces or rabbitfish will usually fight relentlessly.

MarineMarineIntermediate

Magnificent Foxface

Siganus magnificus

The Magnificent Foxface is a strikingly marked, highly active algae grazer that makes a fantastic and utilitarian addition to large marine aquariums.

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Ideal Conditions

Temperature: 24 – 28 °C
pH range: 8.1 – 8.4
Hardness: 8 – 12 dGH
Salinity: 1.02 – 1.025 SG
Adult size: 20 – 24 cm
Min. volume: 450 litres+
Lifespan: 10 – 12 years
Diet: Herbivore/Omnivore
Water flow: Moderate to High
Preferred setup: Ample live rock for grazing and hiding spaces

About the Magnificent Foxface

The Magnificent Foxface is a beautiful marine species prized for its vivid contrast of stark white, jet black, and vibrant red or yellow margins. Endemic to the Andaman Sea, this rabbitfish is a diligent algae grazer that makes an excellent utilitarian and aesthetic addition to the spacious marine aquarium. It features a distinctive elongated snout used for picking algae from crevices, alongside prominent fins equipped with venomous spines.

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Is it right for your tank?

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Where Magnificent Foxface comes from

Native range

Eastern Indian Ocean, Andaman Sea

Countries / regions

Thailand, India, Myanmar

Habitat

Coral-rich reef faces and rocky areas with abundant benthic algae.

Primarily restricted to the Andaman Sea.

Similar species

Foxface Rabbitfish
Siganus vulpinus
One Spot Foxface
Siganus unimaculatus
Coral Rabbitfish
Siganus corallinus

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

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Ocellaris Clownfish
Amphiprion ocellaris
Peaceful and occupies different swimming zones, making them excellent companions.
Great
Yellow Tang
Zebrasoma flavescens
Both are active grazers; they coexist well in spacious aquariums despite a shared diet.
Great
Foxface Rabbitfish
Siganus vulpinus
Highly territorial towards its own kind and closely related species; severe fighting is likely.
Not recommended
Zoanthids and LPS Corals
While generally reef-safe, a hungry Magnificent Foxface may occasionally nip at fleshy polyps.
Compatible with caution
Lined Seahorse
Hippocampus erectus
The Foxface is too fast and active, likely outcompeting the slow-moving seahorse for food.
Not recommended

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