Care guide, husbandry, breeding, disease, and sourcing intelligence on Gold Tetra - written by the Fast Aquatics editorial team.
Gold Tetra at a glance
Adult size: 1.75 inches · Min tank/pond: 20 gallons · Difficulty: beginner · Diet: omnivore · Lifespan: 4-5 years.
Gold Tetra (Hemigrammus rodwayi) is a popular freshwater fish in the aquarium and pond hobby. Hardy and forgiving when given proper water chemistry.
Where Gold Tetra comes from
Gold Tetra (Hemigrammus rodwayi) is native to specific tropical and subtropical freshwater systems. Captive-bred specimens at most LFS come from generations of farmed stock and are generally hardier and more colorful than wild-caught equivalents.
Gold Tetra tank size and setup
Gold Tetra requires a minimum of 20 gallons for healthy adults. The minimum is based on 1.75 inches adult size and territorial range. Plan a tank sized for adult footprint, HOB or canister filter rated 4-6x volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape.
Water parameters for Gold Tetra
Gold Tetra prefers freshwater parameters: temperature 74-80°F, pH 6.5-7.5, GH 4-12 dGH, KH 3-8 dKH, ammonia + nitrite 0 ppm, nitrate under 20 ppm. Use dechlorinator on every water change.
What Gold Tetra eats
Gold Tetra is a omnivore. Provide a varied diet of pellets, frozen foods, and supplemental greens. Feed twice daily in small portions. Browse our food guides for product recommendations.
Gold Tetra tankmates and compatibility
Gold Tetra works in community tanks with peaceful species in similar size class. Avoid mixing aggressive with passive species.
Gold Tetra adult size and lifespan
Gold Tetra reaches 1.75 inches at adulthood with a captive lifespan of 4-5 years with proper care.
Can you breed Gold Tetra?
Gold Tetra can be bred in dedicated breeding tanks with appropriate setup and water-chemistry triggers. Research the species-specific breeding requirements before attempting.
Common Gold Tetra diseases and problems
Gold Tetra is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Gold Tetra for 4 weeks before adding to display.
Where to buy Gold Tetra online
Gold Tetra is sold at LFS, online retailers, and direct from breeders. Browse live Gold Tetra from vetted Fast Aquatics vendors with carrier-tracked overnight shipping, climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims.
Related freshwater species you might also keep
Other species in the same category with care profiles on Fast Aquatics. Click any name for the full husbandry breakdown.