Blue Clown Goby (Gobiodon caeruleus) Care Guide:
The Blue Clown Goby is a small, vibrant marine fish prized for its striking blue coloration and peaceful temperament. Native to Indo-Pacific coral reefs, it thrives in well-established reef aquariums with plenty of live rock, crevices, and corals for perching and hiding. A minimum tank size of 10–20 gallons is suitable for a single fish, with slightly larger tanks recommended for pairs. Ideal water parameters include temperatures of 75–82°F (24–28°C), pH 8.1–8.4, and salinity of 1.020–1.025. Blue Clown Gobies are omnivorous, feeding on small meaty foods such as mysis shrimp, brine shrimp, and micro-pellets, often grazing on algae as well. They are peaceful and territorial, making them excellent reef-safe tankmates, but they should not be housed with aggressive species that may outcompete them for food.
Aspect
Details
Scientific Name
Gobiodon caeruleus
Common Name
Blue Clown Goby
Origin
Indo-Pacific coral reefs
Size
Up to 1.5 inches (4 cm)
Tank Size
Minimum 10–20 gallons
Temperature
75–82°F (24–28°C)
pH
8.1–8.4
Salinity
1.020–1.025 specific gravity
Diet
Omnivorous – mysis shrimp, brine shrimp, micro-pellets, algae
Temperament
Peaceful, territorial
Tank Setup
Live rock, crevices, coral perches
Lifespan
3–5 years
Compatibility
Reef-safe, peaceful fish and invertebrates