Description

The Yellow Coral Goby is a tiny, peaceful reef fish known for its bright yellow coloration, perch-like behaviour, and strong association with branching corals. Often seen hovering within SPS colonies or resting on coral branches, this species adds constant movement and natural behaviour to nano and reef aquariums.

Despite their small size, Yellow Coral Gobies are hardy when kept in stable, mature systems and make an excellent choice for reef tanks with low aggression and established coral structures.

Scientific Name

Gobiodon okinawae

Common Names

• Yellow Coral Goby
• Okinawa Goby
• Coral Goby

Care Level

Easy

Temperament

Peaceful (can be territorial with its chosen coral)

Reef Safe

Yes — completely reef safe

Minimum Tank Size

60L+

Maximum Size

Around 3–4cm

Lifespan

3–5+ years with proper care

Natural Habitat

Yellow Coral Gobies are found throughout Indo-Pacific coral reefs, especially among branching SPS corals such as Acropora. They live directly within coral colonies, using them for shelter, protection, and breeding.

Their close association with corals provides both safety and feeding opportunities from passing plankton and surface biofilm.

Diet & Feeding

Yellow Coral Gobies are small omnivores with a preference for microfoods.

Recommended Foods

• Frozen cyclops
• Copepods
• Baby brine shrimp (enriched)
• Finely crushed marine pellets
• Micro plankton blends
• Occasional frozen mysis (very small pieces)

Feed 1–2 times daily in small amounts due to their tiny size.

Water Parameters

Recommended Parameters

• Salinity: 1.024–1.026
• Temperature: 24–26°C
• pH: 8.1–8.4
• Ammonia: 0ppm
• Nitrite: 0ppm
• Nitrate: <10ppm

Stable, mature reef conditions are important for long-term health.

Tank Setup

Yellow Coral Gobies thrive in coral-dominated reef systems, particularly SPS tanks.

Ideal Setup Includes

• Branching SPS corals (Acropora, similar structures)
• Stable rockwork
• Moderate flow
• Low aggression tank mates
• Tight lid (small fish, can be lost easily)
• Mature reef environment

They often form a strong bond with a specific coral colony and rarely stray far from it.

Compatibility

Yellow Coral Gobies are peaceful and ideal for nano and reef community tanks.

Common Compatible Tank Mates

• Clownfish (peaceful species)
• Blennies
• Small wrasses (reef safe species)
• Firefish
• Cardinalfish
• Other nano gobies

Use Caution With

• Large or aggressive wrasses
• Predatory fish
• Overly active feeders that may outcompete them
• Fish that may damage coral colonies they inhabit

Common Mistakes

No Coral Host Available

They thrive best when provided branching coral to live within. Without it, they may feel exposed and stressed.

Overpowering Tank Mates

Their tiny size makes them vulnerable to competition during feeding.

Strong Uncontrolled Flow

While they enjoy flow, excessive turbulence can force them away from their coral home.

Not Accounting for Their Size

They are extremely small and can be lost or overlooked in large systems.

Fun Facts

• Yellow Coral Gobies live directly inside coral colonies for protection.
• They often form long-term pair bonds and share the same coral home.
• Their body shape is adapted to “cling” and perch within branching structures.
• They are one of the few fish that can safely coexist closely with SPS corals without damage.

Why Buy Yellow Coral Gobies From Aquamarine Aquaristic?

At Aquamarine Aquaristic, our nano reef fish are carefully selected for health, activity, and feeding response. We specialise in reef-safe species that thrive in both nano and large reef systems, ensuring long-term success for hobbyists.