Will a Yellow Clown Goby eat my SPS corals?

They do not consume coral tissue for sustenance. However, if a pair decides to breed, they will nip and remove a small patch of polyps near the base of a branching coral to create a smooth surface for laying their eggs. In large, healthy corals, this minor damage quickly heals.

Can I keep more than one Yellow Clown Goby in the same tank?

In small nano aquariums, keeping more than one is not recommended unless they are a confirmed bonded pair, as they will fight over territory. In much larger aquariums (over 200 litres) with plenty of branching structures, multiple individuals can establish their own territories.

Why is my Clown Goby sitting on the glass or sand?

Because they lack a swim bladder, they must perch. If an aquarium lacks branching structures like corals or specific rockwork, they will resort to perching on the glass, filter intakes, or the substrate. Providing branching habitats will usually encourage them to move up.

Are they reef safe with shrimp and crabs?

Yes, they are completely safe with ornamental invertebrates. Their mouths are too small to pose any threat to popular reef inhabitants like cleaner shrimp, hermit crabs, or snails.

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Yellow Clown Goby

Gobiodon okinawae

The Yellow Clown Goby is a vibrant, diminutive fish famous for its bright yellow colouration and fascinating association with branching SPS corals.

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Ideal Conditions

Temperature: 22 – 27 °C
pH range: 8.1 – 8.4
Hardness: 8 – 12 dGH
Salinity: 1.02 – 1.025 SG
Adult size: 3.5 – 4 cm
Nano tank: 30 litres+
Lifespan: 3 – 5 years
Diet: Carnivore
Water flow: moderate
Preferred setup: Reef environment with branching SPS corals or similar artificial structures for perching.

About the Yellow Clown Goby

Boasting a vivid mustard-yellow hue, the Yellow Clown Goby (*Gobiodon okinawae*) is an iconic nano fish in the marine aquarium hobby. Their diminutive size, lack of a swim bladder, and endearing habit of perching motionless on corals or rockwork make them a captivating addition to a reef setup. Because they spend the majority of their time resting in plain sight, they provide excellent viewing opportunities despite their small footprint. They are incredibly hardy, adapting well to captive conditions when provided with appropriate hiding spots and peaceful tankmates.

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Where Yellow Clown Goby comes from

Native range

Western Pacific

Countries / regions

Japan, Indonesia, Philippines, Australia

Habitat

Shallow coral reefs and protected lagoons, almost exclusively found among the branches of Acropora corals.

Widespread across the western central Pacific, largely restricted to areas with dense small-polyp stony (SPS) coral growth.

Similar species

Green Clown Goby
Gobiodon histrio
Citron Clown Goby
Gobiodon citrinus
Brown Clown Goby
Gobiodon sp.

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

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Ocellaris Clownfish
Amphiprion ocellaris
Peaceful, occupies the water column and will largely ignore the perching goby.
Great
Skunk Cleaner Shrimp
Lysmata amboinensis
Completely reef safe and peaceful; adds activity without threatening the goby.
Great
Acropora Corals
Acropora spp.
Provides the goby's natural perching habitat, but breeding pairs may strip small patches of coral tissue to lay their eggs.
Compatible with caution
Green Clown Goby
Gobiodon histrio
Similar species will compete for perching spaces and can be highly territorial towards each other in nano aquariums.
Compatible with caution
Volitan Lionfish
Pterois volitans
A predatory fish that will easily swallow small gobies whole.
Not recommended

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