Gobies · Gobiidae
Care levelBeginner
Sharknose Goby
Elacatinus evelynae
A small cleaner goby whose yellow head stripe blends into blue along the body. It can eat prepared foods and should receive a regular diet rather than being expected to live on cleaning other fish.
Captive-bred specimens often accept aquarium foods, but tiny size and predator exposure still require care.
Recommendation
Would you recommend this fish for a suitable saltwater aquarium?
10+ galRecommended tank
2 inchesAdult size
Peaceful; territorial with similar gobiesTemperament
Generally compatibleCoral safety
+ Why you’ll love them
- Distinctive cleaner-goby coloration.
- Suitable prepared foods can support a dependable feeding plan.
- Generally peaceful toward appropriately chosen dissimilar fish.
! Things to consider
- Small or shy fish can lose access to food or become prey.
- Similar gobies can dispute shelter or territory.
- Needs secure cover and a suitable adult habitat.
Tank and habitat
- Recommended volume
- 10 US gallons or larger; allow for stocking and layout.
- Full-grown size
- 2 inches (maximum adult size)
- Tank footprint and swimming space
- Provide sheltered perches, small crevices and quiet feeding access. Plan escape routes from larger fish; a cleaning station does not guarantee safety.
- Tank maturity
- Use a fully cycled aquarium with stable filtration and a dependable feeding plan. Tank age alone does not demonstrate readiness. Suggested tank age is a planning guide, not proof of readiness. Complete cycling, stable water and the right food supply are essential.
- Habitat and equipment
- Provide stable rock refuges, protected pump intakes, suitable circulation and a secure lid. Cover openings around plumbing and cables.
Care and compatibility
- Temperament
- Peaceful; territorial with similar gobies
- Why this care level
- Captive-bred specimens often accept aquarium foods, but tiny size and predator exposure still require care.
- Suitable tank mates and conflicts
- Use peaceful non-predatory companions. Even a recognized cleaner can be swallowed or attacked; cleaning behavior does not replace quarantine or treatment of disease.
- Alone, pair or group
- A single fish or verified compatible pair is the simpler plan. Other cleaner gobies may compete; color similarity does not establish species or pairing.
Corals and invertebrates
- Coral safety
-
Generally compatible
Generally leaves coral tissue alone; continue observing the individual and its resting behavior. - Shrimp safety
-
With caution
Generally compatible with established ornamental shrimp, but tiny shrimp and larvae may be eaten. Predatory crustaceans can threaten the goby. - Snail safety
-
Generally compatible
Generally compatible with established snails; tiny larvae and small food organisms may be eaten. - Clam safety
-
Generally compatible
Generally leaves clam tissue alone; monitor the individual and keep normal feeding needs met.
Food and feeding
- Diet
- Carnivore; suitable small marine meaty foods
- Feeding plan
- Feed small marine carnivore foods regularly, at least daily. Do not rely on parasites or cleaning behavior to supply its diet.
- Prepared or live food
- Finely sized frozen foods and suitable tiny pellets or flakes if accepted. Follow the breeder’s routine for captive-bred specimens.
Water conditions
- Temperature
- 72–78 °F (22–26 °C) is the marine aquarium reference range used here. Maintain stable conditions and consider all inhabitants.
- Specific gravity
- Specific gravity 1.020–1.025 is a common fish-care reference range. Corals and other invertebrates may require a narrower target.
- pH
- pH 8.1–8.4. Maintain stability and monitor alkalinity instead of making abrupt corrections.
Long-term care
- Lifespan
- The references used here do not establish a dependable typical captive lifespan. Plan for long-term care without assuming an invented average.
- Growth and future planning
- ORA describes a usual size around 1.5 inches, while Quality Marine reports slightly over 2 inches. The roughly 2-inch planning value is not a hard maximum; allow room for individual variation.
Before you buy
- Is this fish right for your tank?
- Select a feeding individual and assess larger fish and predatory invertebrates. Cleaning behavior does not make this tiny fish safe from being swallowed.
- Buying checklist
- Check the scientific name, observe feeding and inspect the eyes, fins, breathing and body condition. Arrange quarantine and confirm the seller’s feeding and acclimation routine.
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