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FishbeginnerSaltwater

Neon Goby

Elacatinus oceanops

AnimaliaChordataActinopterygiiGobiidae

📍 Caribbean — Florida to Honduras

Ask Finn

Tiny electric-blue-striped goby renowned as a cleaner fish — will pick parasites from larger tank mates. Ideal for nano reefs. The Caribbean's answer to the cleaner wrasse.

Size2"
Min Tank20g
School2+
peaceful
Zonebottom

Care Guide

Diet

Neon Gobies are obligate carnivores that primarily feed on small crustacean parasites in the wild. In captivity, offer small frozen foods like mysis shrimp, copepods, and enriched brine shrimp once daily in small portions. Supplement with high-quality micro pellets designed for small marine fish, though they may ignore prepared foods initially.

Behavior

These tiny gobies are peaceful, bottom-dwelling fish that spend most of their time darting along the substrate and rockwork. They are famous for their cleaner fish behavior, picking parasites and dead skin from larger tank mates' bodies. They are generally solitary or found in pairs and are active during the day, making them entertaining to observe.

Breeding

Breeding Neon Gobies in captivity is difficult and rarely successful in home aquariums. They require specific water conditions, small caves for spawning, and careful larval rearing with live food cultures. Most captive specimens are wild-caught, making them challenging to breed without expert-level care.

Common Diseases

Ich (Marine Ich)

Symptoms

White spots on body and fins, rapid breathing, lethargy, rubbing against surfaces

Treatment

Raise temperature gradually to 28-29°C, maintain excellent water quality, use copper-based treatments cautiously or UV sterilization; quarantine affected fish

Bacterial Infections

Symptoms

Torn fins, cloudy eyes, open sores, loss of appetite, color fading

Treatment

Improve water quality immediately, perform partial water changes, use antibiotic medications if severe; ensure adequate nutrition

Parasitic Infections

Symptoms

Excessive scratching, visible parasites on skin, rapid gill movement, weight loss

Treatment

Quarantine immediately, use appropriate antiparasitic treatments, maintain pristine water conditions, increase aeration

Starvation/Nutritional Deficiency

Symptoms

Extreme thinness, lethargy, faded coloration, inability to compete for food

Treatment

Increase feeding frequency to 3-4 times daily with varied live and frozen foods; target-feed if necessary to ensure adequate intake

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Quick Facts

pH
8.1–8.4
diet
parasites, mysis, copepods
maxSize
2 inches
minTankSize
10 gallons
temperature
72–82°F (22–28°C)

Temperature

72–82°F

22–28°C

Stats

Community tips0
Kept by0 hobbyists