🐠 Citron Clown Goby (Gobiodon citrinus)
A Vivid Lemon-Yellow Body With Electric-Blue Facial Lines • A Thick, Bitter Mucus Coating for Defence • A Coral-Dwelling Nano Fish
 
📋 The Citron Clown Goby, also known as the Citron Goby or Poison Goby, is a tiny, big-headed nano fish with a vivid lemon-yellow to pale yellow body, electric-blue lines radiating around the eyes and gills, and a blue stripe along the dorsal fin.
It comes from coral-rich reefs across the Indo-West Pacific, from the Red Sea to Mozambique, east to Samoa, and south to the Great Barrier Reef, living almost exclusively among the branches of Acropora and other stony corals, perching on ledges to survey its surroundings. Every Citron Clown Goby we ship is feeding well.
An interesting natural trait: this species lacks scales and instead relies on a thick, bitter-tasting toxic mucus coating for protection, which is exactly why it's sometimes nicknamed the "Poison Goby"; predators that try to eat it quickly learn to leave it alone. For aquarium keepers this poses no real risk, though it's still sensible to avoid excessive handling. It's generally considered reef safe, though it may occasionally nip at the polyps or base of Acropora and other SPS corals. It reaches up to 6.6cm, so a 75L tank suits it well.
 
💡 Highlights
🎨 Vivid Lemon-Yellow and Blue: A bright body with distinctive blue facial lines
🛡️ Toxic Defensive Mucus: A natural, scale-free defence against predators
🐠 A True Nano Species: Perfect for small reef tanks
🌿 Reef Safe: Generally safe, though occasional coral polyp nipping is possible
🧠 Beginner Friendly: Hardy, full of personality