Species description

Care, breeding and tankmates

Fish profile

Temperament

Peaceful

They are incredibly peaceful but tend to be quite timid and easily spooked. When housed in a tranquil environment, they spend their days conspicuously hovering and flicking their dorsal fin. A calm tank is essential for them to display their natural, relaxed behaviors.

Diet

Omnivore

They are carnivorous zooplanktivores that require a meat-based diet. Formulated marine flakes, micro-pellets, and thawed frozen foods like mysis or enriched brine shrimp are perfect. Providing varied foods enhances their immune system and maintains their vivid coloration.

Sex ratio

Group

There is no known way to visually distinguish between male and female Firefish Gobies. Because they are intensely territorial towards their own kind, it is highly recommended to keep only one per aquarium. Only confirmed mated pairs will tolerate each other's presence.

Feeding frequency

Twice daily

They require small meals fed at least once or twice daily. Because they wait for food to drift past them, feeding should be done slowly to ensure they catch enough. Any uneaten food that hits the sandbed is generally ignored by them.

Bioload

Medium

The Firefish Goby carries a remarkably low bioload due to its small size and efficient digestion. They are perfect additions to smaller aquariums without overloading the biological filtration. Regular maintenance schedules easily handle the minimal waste they produce.

Flow

Moderate

Moderate, sweeping water flow is ideal for simulating their natural habitat. They enjoy facing the current to pick passing plankton out of the water column. Excessive turbulence will force them into permanent hiding and cause undue stress.

Jump risk

Yes

This species has a legendary reputation for launching itself out of aquariums. A secure lid with absolutely no gaps is mandatory if you wish to keep them alive. They will eagerly jump through incredibly small openings if startled by lights or other fish.

Reproduction

Oviparous

While they lay eggs inside deep burrows in the wild, breeding them in captivity is incredibly difficult. Both parents guard the clutch aggressively until hatching. The microscopic larvae are very difficult to feed, making captive propagation extremely rare.

Compatibility & tankmates

Territorial

This is an extremely peaceful species that makes an excellent neighbor for other docile fish. They are fully reef compatible and will not bother corals, shrimp, or snails. Avoid large or aggressive tankmates, as well as keeping more than one firefish per tank to prevent fatal infighting.

Tank level

Middle/Bottom

They generally hover in the lower third of the tank, suspended a few inches above the substrate. They require a dedicated 'bolt hole' in the rockwork to which they retreat instantly when threatened. A fine sand bed and ample live rock structure are critical.