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Freshwater fishRhino Horn Goby
Rhino Horn Goby
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The rhino horn goby, sometimes called the freshwater clown goby, has a distinct extension on the dorsal fin, which gives the fish its name. Rhino horn gobies are dwarf bottom dwellers that have similar behavior to wild cory catfish. The rhino horn goby is caught in the wild regions of Sri Lanka in freshwater AND brackish water, so these aquarium fish can handle either condition.
Quick Facts
| Scientific Name | Redigobius balteatus |
| Origin | Sri Lanka and the Indo-Pacific |
| Care Level | Moderate |
| Temperament | Peaceful with other fish; territorial with its own kind |
| Adult Size | Up to 1½" |
| Lifespan | 3–5 years |
| Diet | Carnivore (small meaty foods) |
| Water Temperature | 75–82°F |
| pH | 7.5–8.5 |
| Group Size | Does best in a group, with plenty of hiding spots |
| Shipping Size | Approx. 1" |
Care Guide
Tank setup: These small gobies do best with plenty of caves and hiding spots (small shells and rocks work well) and hard, alkaline water. Many do best with a little marine salt in the water (brackish, specific gravity about 1.002–1.008).
Feeding: Feed small amounts once or twice a day. They prefer small frozen foods like brine shrimp and bloodworms, and some will not eat flake reliably.
Tankmates: Keep them in a species tank or with other small, peaceful brackish fish such as mollies, glassfish and small livebearers. Avoid larger fish that could eat them.
Good to know: These tiny gobies are full of personality and often perch on rocks or glass to watch their surroundings.
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