The Threadfin Goby is a peaceful, bottom-dwelling fish known for its elegant elongated fins and gentle demeanor. It thrives in clean, well-oxygenated freshwater or slightly brackish aquariums with fine sand substrate and plenty of hiding spots such as rocks, driftwood, and plants. These gobies prefer calm tankmates and stable water conditions, as they can be sensitive to poor quality or sudden changes. A diet of live or frozen foods like bloodworms, brine shrimp, and daphnia, supplemented with quality sinking pellets, keeps them healthy and active. Provide moderate water flow and subdued lighting to mimic their natural habitat.
Aspect
Details
Scientific Name
Stenogobius sp. (Threadfin Goby)
Origin
Southeast Asia, Pacific Islands
Tank Size
Minimum 20 gallons
Temperature
74–82°F (23–28°C)
pH
7.0–8.2
Water Hardness (GH)
8–18 dGH
Salinity
Freshwater to low-end brackish (optional 1.002–1.005 SG)
Diet
Live/frozen foods, sinking pellets, occasional algae-based foods
Behavior
Peaceful bottom dweller, mildly territorial with own kind
Lifespan
3–5 years
Compatibility
Peaceful community fish; avoid aggressive or large species
Special Notes
Needs fine sand to prevent fin damage; prefers stable, clean water