🐠 Blue Spotted Rabbitfish (Siganus corallinus)
A Yellow-Gold Body With Blue Lines Breaking Into Iridescent Spots • Venomous Defensive Spines That Deter Tankmates • A Dedicated Herbivore Needing Ongoing Algae
 
📋 The Blue Spotted Rabbitfish, also known as the Blue Spotted Spinefoot, is a striking marine fish with an oblong yellow-gold body. Juveniles show thin blue lines that gradually break up into iridescent blue spots covering the head, body, and fins as the fish matures.
It comes from reefs across the Indo-West Pacific, often found travelling in pairs, grazing steadily on algae throughout the day. Every Blue Spotted Rabbitfish we ship is feeding well.
Like all rabbitfish, this species carries venomous dorsal and anal spines, similar in severity to a lionfish sting, which it raises defensively when threatened, this is why even more assertive tankmates tend to leave it alone. Care is needed during handling and tank maintenance to avoid accidental contact. One quirk worth knowing: when stressed, this species can display a duller, blotchy defensive colouration that can look like illness but is actually natural camouflage, it typically returns to normal colour once settled. It's reef safe with caution; a well-fed specimen generally leaves corals alone, but if underfed it may nip at LPS, soft corals, sponges, or tunicates. It reaches up to 20cm, so a 450L tank suits it well.
 
💡 Highlights
🎨 Striking Blue-Spotted Pattern: Blue spots develop and spread with maturity
⚠️ Venomous Defensive Spines: Similar severity to a lionfish sting; care needed in handling
🌿 Reef Safe With Caution: Generally leaves corals alone if consistently well-fed
🐟 Peaceful Toward Other Species: Its venom deters aggressive tankmates
🥗 Dedicated Herbivore: Requires substantial algae-based feeding to thrive