Gold barb

Quick facts

Adult size

8 cm

Lifespan

can live up to 6 years

Tank zone

mid

Temperament

peaceful

Difficulty

beginner

Schooling

recommended 6+ (critical minimum 5, thrives at 8+)

Water parameters

Temperature

18–26°C

pH

6.0 to 8.0

Hardness

2 to 18 dGH

Tank requirements

Minimum volume

110 L

Minimum length

75 cm

Flow

moderate

Lighting

moderate

Substrate

any

Open swimming room

needed

Lid

required - jumper

Feeding

Diet: omnivore, feeds primarily at the mid.

Eats everything offered without hesitation. Flake, pellets, frozen bloodworm, frozen brine shrimp, frozen daphnia, blanched vegetables, algae. An easy fish to feed. They pick food from the surface, midwater, and substrate. Not competitive or aggressive at feeding time. Feed twice daily. The gold body color intensifies with a varied diet; carotenoid-rich foods (brine shrimp, spirulina) make the biggest difference.

Compatibility

• Peaceful, hardy schooling barb that works in almost any community setup. One of the least problematic barbs available, with no nipping behavior even in small groups.
• Groups of 6+ bring out the best color and schooling behavior. Males compete for female attention by intensifying their gold coloration.
• Good with tetras, rasboras, corydoras, gouramis, and other barbs. Tolerates cooler water (18–24°C), making it compatible with subtropical species like white cloud mountain minnows and peppered corys.
• Shrimp-safe with adult shrimp. The mouth is too small to eat adult cherry shrimp, though very small shrimplets may be picked at.

Habitat

Native to rivers and streams in southern China (Fujian, Guangdong, Guangxi provinces) and Taiwan. The wild form (Barbodes semifasciolatus) is a greenish-olive fish with dark vertical bars, not particularly colorful. The gold variety that dominates the hobby trade was developed through selective breeding by Thomas Schubert in the 1960s and is sometimes called the 'Schubert barb.' The gold form ranges from pale lemon to deep orange-gold depending on genetics, diet, and conditions. Males are smaller, slimmer, and develop more intense gold with possible orange or red tints. Females are larger, rounder, and paler. The wild green form occasionally appears in specialty stores but the gold variant accounts for the vast majority of sales. Adult size is 6–7 cm. The species tolerates a wider temperature range than most tropical barbs (18–24°C is comfortable, and they survive brief dips lower), making them suitable for unheated indoor tanks in mild climates. Commercially bred in large quantities. Inexpensive and almost always available.

Breeding

Easy egg scatterer. Condition a pair with frozen food for a week. The breeding tank needs fine-leaved plants or spawning mops, moderate temperature (22–24°C), and clean water. Water chemistry is not critical; they breed in soft or moderately hard water. Spawning happens in the morning. The pair scatters 200-300 eggs among the plants. Eggs are slightly adhesive. Adults eat every egg they find, so remove them immediately. Eggs hatch in 36-48 hours. Fry become free-swimming in another 2-3 days and take baby brine shrimp as first food. Growth is rapid. Gold barbs are one of the simpler barb species to breed at home and a reasonable first breeding project.

Common problems

Almost no problems. This is one of the hardiest freshwater fish available. Disease issues are rare in established tanks. Ich can appear in newly purchased fish but responds to standard treatment without complications. Color fading is usually dietary; switch from a dry-food-only diet to one with frozen and color-enhancing foods. The main 'problem' is that gold barbs are so undemanding and drama-free that they get overlooked for flashier species. They don't have the wow factor of neon tetras or the behavioral interest of cichlids, but for a reliable, low-maintenance schooling fish that always looks good, they're hard to beat. Lifespan is 5-7 years.

Bioload

Bioload coefficient: 1.5 (small-to-mid-sized barb; similar to cherry barb but slightly larger).

Bioload coefficients are calibrated against the neon tetra as the anchor (1.0). See the methodology page for the formula and how each value was derived.

Further reading

• How to cycle a fish tank
• Stocking ideas by tank size