Gold barb (Barbodes semifasciolatus) care guide

Group

Freshwater fish

Other names

Chinese barb, Green barb, Golden barb, Schuberti barb, Schubert's barb, Gold-finned barb

Family

Cyprinidae (Smiliogastrinae)

Origin

Red River basin of northern Vietnam and Yunnan, plus southern China (including Hainan), Taiwan and northern Laos; slow streams, swamps and irrigation channels with dense plants.

Water

freshwater

Maximum size

7.5 cm

Temperature

16–24°C

pH

6–8

Hardness

Soft to hard, 2–20 dGH

Minimum tank

81 litres

Care level

beginner

Temperament

peaceful

Lifespan

4–6 years years

Care

The gold barb is a hardy, undemanding little barb and a good choice for a first community tank. It is a shoaling fish, so keep a mixed group of at least eight to ten; in a bigger group the males spend their energy displaying to each other and show their best colours. A tank with a base of at least 90 × 30 cm (around 81 litres) is a sensible minimum. It looks best in a well-planted tank with a dark substrate, some floating plants and driftwood roots or branches to soften the light. Gentle to moderate water movement suits it, and it does well in a stream-style layout too. This is a subtropical fish that prefers cooler water than most tropical barbs: about 16–24 °C, pH 6–8 and soft to hard water. It does not need high temperatures, so it is a good companion for other cool-water species. Females are a little larger and noticeably rounder in the belly than males. In the wild (green) form, mature males develop red on the lower part of the body, and both sexes show three to five dark spots along the flank that can join into short bars. Most fish on sale are the golden form, a yellow line developed by selective breeding in the United States in the 1960s and once sold as a separate species, "Puntius schuberti". Heavy farming of this strain means that some fish have shortened fins or other deformities, so choose stock carefully. The natural green form is seen less often, and an albino form is occasionally available. The IUCN lists the species as Least Concern. Feral populations exist outside its natural range, for example in Singapore and Hawaii. Sources: Seriously Fish (seriouslyfish.com/species/barbodes-semifasciolatus/); FishBase (fishbase.se/summary/Barbodes-semifasciolatus.html); Wikipedia (en.wikipedia.org/wiki/Barbodessemifasciolatus). Checked October 2026.

Diet

An omnivore that forages for algae, diatoms, detritus, insects, worms and tiny crustaceans. In the aquarium it takes almost anything: give a good flake or small granule that includes plant matter, plus regular small live or frozen foods such as bloodworm, Daphnia and brine shrimp for the best colour and condition.

Breeding

An egg-scatterer that gives no parental care and will eat its own eggs. Set up a separate, dimly lit tank with mature water, a slightly acidic to neutral pH and a temperature at the top of its range, plus an air-driven sponge filter. Cover the base with mesh large enough for eggs to fall through but not the adults, or use glass marbles, grass matting, fine-leaved plants such as Java moss or a spawning mop. Condition the adults well, then add a pair (or a small group) once the females look full of eggs. Spawning usually happens at first light the next morning; a female typically lays around 100 eggs, sometimes far more. Remove the adults afterwards. The eggs hatch in 24–48 hours and the fry swim freely about a day later. Feed infusoria-sized foods first, then microworm and newly hatched brine shrimp. It will also breed readily in outdoor pools in warm summers.

Compatibility and tank mates

Generally very peaceful and a good community fish when kept in a proper group. Good tankmates include other peaceful barbs, danios and rasboras, loaches and bottom-dwellers such as Garra and Crossocheilus species. Because it likes cooler water it also suits subtropical companions such as White Cloud Mountain minnows. Avoid very large or predatory fish that could eat it.

Last updated 5 October 2026. Community-edited care guide on Aquatic-Auctions.