Green Mandarin Dragonet (Goby)

The Green Mandarin Goby (Synchiropus splendidus): Often called the Mandarin Dragonet — is one of the most dazzling reef fish available in the aquarium trade. Its hypnotic coloration and graceful, gliding movement make it a centerpiece species for peaceful reef tanks. 🐠 Identity & Key Facts Scientific name: Synchiropus splendidus Common names: Green Mandarin Goby, Mandarin Dragonet, Striped Dragonet Adult size: 2.5–3 inches (6–8 cm) Distribution: Western Pacific — Philippines, Indonesia, Australia Care level: Moderate to advanced Captive-bred availability: Increasingly common; aquacultured specimens adapt better to prepared foods 🎨 Appearance Iridescent green and blue base with orange and yellow wavy stripes across the body Males have elongated first dorsal fin rays and slightly larger bodies The skin is mucus-covered rather than scaled, giving a smooth, velvety look Eyes are large and expressive, often shifting independently 🌍 Natural Habitat Found on shallow coral rubble and lagoon reefs Spends most of its time gliding over substrate, hunting for tiny crustaceans Prefers low-flow zones rich in live rock and microfauna 🧠 Behavior & Temperament Peaceful and shy, ideal for calm reef communities Spends the day foraging continuously for copepods and amphipods Males may display territorial behavior toward other males Reef-safe — does not harm corals or invertebrates 🏡 Aquarium Requirements Minimum tank size: 30 gallons (larger preferred for pod populations) Aquascape: Abundant live rock and refugium support for natural food sources Water parameters: Temp: 75–82°F Salinity: 1.023–1.025 pH: 8.1–8.4 Lighting: Moderate; avoid overly bright setups that stress the fish 🍽️ Diet Carnivore / micro‑predator Prefers live copepods, amphipods, and small worms Captive-bred individuals may accept: Frozen mysis or brine shrimp Enriched live foods Specialized micro pellets Feed multiple small meals daily to mimic natural grazing 🪸 Compatibility Excellent with peaceful reef fish (firefish, gobies, blennies, clownfish) Avoid aggressive or fast-feeding species that outcompete it for food Safe with all corals and ornamental shrimp 🧬 Breeding Courtship displays occur at dusk; pairs rise together in a spiral motion to spawn Eggs are released into the water column and hatch within 12–16 hours Larvae are planktonic and require rotifers and microalgae for survival