Gold barb
Barbodes semifasciolatus
easy careOverview
The gold barb (Barbodes semifasciolatus) is a hardy, glowing-yellow shoaling fish and one of the most forgiving barbs for a beginner. A colour form of the wild green barb, it is peaceful, adaptable and unusually tolerant of cooler water — making it a great fish for an unheated or lightly heated room-temperature community. Kept in a group, gold barbs are active, bright and endlessly busy.
Tank & water
Gold barbs are subtropical and adaptable. A school of six or more is comfortable in 75 litres (20 gallons) or larger.
- Temperature: 18–24 °C; they tolerate cooler water than tropical fish. A heater keeps things stable and expands tankmate options.
- Filtration: a steady filter with moderate flow suits these active swimmers.
- Water: very adaptable across pH 6.0–8.0 and a wide hardness range.
- Layout: open swimming space with plants at the sides and back.
Feeding
An easy, greedy omnivore, the gold barb eats almost anything. Feed a quality flake or micro-pellet once or twice a day, supplemented with frozen or freeze-dried daphnia, bloodworm and brine shrimp, plus a little blanched vegetable matter. Feed small amounts they clear in a couple of minutes. Our best fish food guide covers good staples.
Tankmates
Peaceful and sturdy, gold barbs suit active community tanks. Good companions include danios, other peaceful barbs, larger tetras and corydoras. Their cool tolerance also pairs them well with subtropical fish. Keep a group of six-plus so they shoal confidently rather than nip.
Common care notes
- Keep six or more so they shoal and stay calm
- Tolerates cooler water — great for unheated rooms
- Provide open swimming space
- Don’t overfeed this eager eater
Hardy, bright and forgiving, the gold barb is an ideal first shoaling fish and a reliable beginner choice.
Gold barb — frequently asked questions
Do gold barbs need a heater?
Not always. Gold barbs are subtropical and tolerate cooler water than most tropical fish, thriving around 18–24 °C. In a warm room they can manage unheated, but a heater keeps temperature stable and lets you match them with warmer-water tankmates.
Are gold barbs peaceful?
Yes. Gold barbs are active but good-natured shoaling fish, far calmer than tiger barbs. Kept in a proper group of six or more they rarely bother tankmates, though a large enough shoal is key to keeping them settled.
How big do gold barbs get?
Around 6–7 cm as adults. They are stocky, golden little fish that need horizontal swimming space, so plan for a tank of at least 75 litres for a comfortable school.
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