FishTankHelper

Gold barb care: tank size, temperature and tankmates

By Andy · Updated November 6, 2026 · Fish profile

A bright, cheerful barb that is calmer than tiger barbs. Gold barbs like cooler water and suit unheated rooms in many homes.

3 in
Adult size
30 gal
Smallest tank
64–75°F
Temperature
6+
Group size

Quick facts

TypeBarb
Adult sizeAbout 3 inches
Smallest tank30 gallons
Temperature64–75°F
Keep6 or more
Watch forLikes cooler water than most tropical fish.

How to keep them

Keep 6 or more. They are busy swimmers, so give them a 30 gallon tank with open water.

Like every fish, they need a cycled tank, a heater set inside their range, and a weekly water change of about 25%. Test for ammonia, nitrite and nitrate before you add them. New to this? Start with how to cycle a fish tank.

Tankmates

Good tankmates

Neon tetra · Ember tetra · Black skirt tetra · Serpae tetra · Harlequin rasbora · Zebra danio · White cloud mountain minnow · Cherry barb · Tiger barb · Platy · Guppy · Endler's livebearer · Molly · Swordtail · Honey gourami · Corydoras (bronze or peppered) · Pygmy corydoras · Otocinclus · Bristlenose pleco · Amano shrimp · Nerite snail · Mystery snail · Black neon tetra · Lemon tetra · Congo tetra · Chili rasbora · Lambchop rasbora · Rosy barb · Dwarf neon rainbowfish · Bolivian ram · Hillstream loach · Ghost shrimp · Ramshorn snail

Possible, with care

Avoid

Not sure about a mix? See the tankmate answers or the stocking ideas by tank size.

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