Gold barb care guide

Plan a tank with gold barbsSee all tank mates

Gold barb quick facts

• Cold-water species: no heater needed in most homes.

Tank setup

A group of six needs a tank at least 36 in (90 cm) long, holding about 29 gallons (110 L) or more, because they are active swimmers. A bigger school needs more room. Plant the back and sides and leave open swimming space in front. A dark substrate and some floating plants make the gold look richer. Use moderate filtration with good surface movement.

How many gold barbs in a tank?

The smallest common tank that suits gold barbs is a 40 gallon. Here is roughly how many fit in each size when they are the only fish, based on adult size and waste output. Leave room if you want tank mates.

Water parameters

Gold barbs like the cooler side: 18–24 °C (64–75 °F). They adapt to a wide range of water, around pH 6.0–8.0 and 4–18 dGH. Keep them out of very warm tropical setups and change part of the water weekly.

Best tank mates for gold barbs

These popular species share gold barbs' water needs and temperament. See the full list of 28 good matches.

• Neon tetra

  3.5 cm (1.4 in) · 21–25°C (70–77°F)

• Panda corydoras

  4.5 cm (1.8 in) · 21–25°C (70–77°F)

• Bronze corydoras

  7 cm (2.8 in) · 21–26°C (70–79°F)

• Zebra danio

  5 cm (2 in) · 18–25°C (64–77°F)

• Ramshorn snail

  2 cm (0.8 in) · 21–27°C (70–81°F)

• Celestial pearl danio

  2.5 cm (1 in) · 20–25°C (68–77°F)

• Malaysian trumpet snail

  2.5 cm (1 in) · 20–27°C (68–81°F)

• Mystery snail

  5 cm (2 in) · 21–26°C (70–79°F)

Avoid keeping gold barbs with

• Cherry shrimp: Gold barb eats small shrimp like cherry shrimp.
• Oscar: Oscar can eat gold barbs: they're small enough to fit in its mouth once it's grown.
• Boesemani rainbowfish: They need different temperatures: Gold barb 18–24°C (64–75°F), boesemani rainbowfish 26–29°C (79–84°F).
• Chinese algae eater: Chinese algae eater is aggressive and will bully or injure peaceful gold barbs.
• Clown loach: They need different temperatures: Gold barb 18–24°C (64–75°F), clown loach 25–30°C (77–86°F).
• Convict cichlid: Convict cichlid is aggressive and will bully or injure peaceful gold barbs.

Feeding

They are foraging omnivores that sift the bottom and plants for food. Feed a good flake or small sinking pellet with plant content, and add frozen or live daphnia, brine shrimp and bloodworm. They also graze algae and enjoy vegetable flakes or algae wafers.

Behavior

A calm shoaling fish that spends much of its time in the lower and middle water. In a proper group it gets along with danios, other barbs, white cloud minnows, hillstream and other loaches, and corydoras. Small groups may nip fins, so avoid bettas and other long-finned fish. They are eager eaters, so make sure shy fish get food too.

Breeding

Females are larger and rounder; males are slimmer, more heavily marked and may show a red belly when ready to spawn. They scatter eggs over fine-leaved plants or moss and then eat them. Spawn a pair or small group in a separate tank with java moss or mesh on the bottom, where a small temperature rise and morning light often trigger spawning. Remove the adults afterward; eggs hatch in 1–2 days.

Tips from experienced keepers

• Good for unheated tanks in a heated home, alongside other cool-water fish.
• The gold color is a farmed form. The wild Chinese barb is greener with dark bars and has the same care needs.
• Choose sturdy plants. They may nibble soft or fine-leaved ones.
• Do not count on them with dwarf shrimp. They eat babies and may hunt small adults.
• Buy from a good source. Some farmed gold barbs are inbred and show short fins or bent spines.

Sources

We checked these references when writing this page. Values are for healthy long-term keeping, not survival limits. Last reviewed 2026-10-13. See our editorial policy.

• seriouslyfish.com
• fishbase.de
• fishkeeper.co.uk