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title: "Tiger Barb: The Complete Care, Tank & Breeding Guide" description: "The definitive tiger barb (Puntigrus tetrazona) care guide: why shoal size controls fin-nipping, water parameters, tank setup, feeding, compatible tank mates, and breeding." slug: tiger-barb commonName: Tiger Barb scientificName: Puntigrus tetrazona family: Cyprinidae order: Cypriniformes difficulty: Beginner minTankSize: 20 temperature: "74–80°F (23–27°C)" ph: "6.0–7.5" hardness: "4–15 dGH" lifespan: "5–7 years" maxSize: "2.8 inches (7 cm)" origin: "Indonesia, Malaysia — Sumatra & Borneo" publishedAt: "2026-06-04"

Tiger Barb: The Complete Care, Tank & Breeding Guide

The tiger barb is one of the most recognisable and energetic fish in the freshwater hobby — a bold, gold-bodied, black-striped torpedo with boundless activity and a notorious reputation. Puntigrus tetrazona is hardy, colourful, and endlessly entertaining, but it comes with a behavioural rule that makes or breaks success: kept in too small a group, it becomes a relentless fin-nipper; kept in a proper shoal, that energy turns inward and it becomes a manageable, fascinating community fish. Understanding the shoal-size rule is the entire secret to tiger barbs.

This guide is the complete reference: the tiger barb's biology, the all-important shoaling-and-aggression dynamic, how to set up its tank, what to feed it, which tank mates work, and how to breed it.

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Species Overview

The tiger barb (Puntigrus tetrazona) is a cyprinid from Southeast Asia, reaching about 7 cm (2.8 inches). Its body is a warm gold-to-orange crossed by four bold black vertical bars, with orange-red accents on the nose and fins — a vivid "tiger" pattern that's striking in a shoal. Popular line-bred varieties include the green ("moss") tiger barb, the albino, and the gold tiger barb.

The tiger barb is hardy, active, long-lived (5–7 years), and full of personality, but it is semi-aggressive and a known fin-nipper — behaviour that is entirely dependent on group size. In a proper shoal of 8 or more, tiger barbs direct their chasing and nipping within the group, establishing a constantly-shifting pecking order, and largely leave tank mates alone; in small groups of two or three, they become bored and aggressive, harassing slow and long-finned fish. Managed correctly, they're robust, beautiful, and one of the most active fish you can keep.

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Natural History and Origin

Puntigrus tetrazona is native to Sumatra, Borneo, and the Malay Peninsula, living in clear and gently tannin-stained forest streams and tributaries with moderate flow, vegetation, and submerged structure. This active-stream habitat is reflected in their boundless energy and love of swimming room.

In the wild, tiger barbs live in large, active shoals with a strong internal hierarchy — constant chasing, displaying, and jostling for rank within the group. This social structure is the key to their aquarium behaviour: their nipping and chasing are natural shoal behaviours that need a big enough group to be absorbed internally. Take away the group and that energy gets redirected at tank mates. Most tiger barbs are now tank-bred, hardy, and adaptable, and their activity, hardiness, and bold pattern have made them a long-standing hobby favourite — for keepers who respect the shoaling rule.

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Water Parameters

Tiger barbs are hardy and adaptable, doing well across a range of conditions, which suits beginners. Keep the tank cycled and stable — confirm with the nitrogen cycle tracker and check values with the water parameters reference. They appreciate clean, well-oxygenated water with some flow, reflecting their active-stream origins.

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Tank Setup Guide

Tank size

Because they need a group of 8 or more and are very active swimmers, tiger barbs need a minimum of 20 gallons (75 litres), with 29+ gallons better and length important for their constant swimming. A bigger tank also helps spread their energy and reduce any harassment.

Aquascape — swimming room and structure

Provide open swimming space for their high activity, framed by planting, driftwood, and rocks that create some cover and broken sightlines. A planted tank with a clear central swimming area suits them well; robust plants survive their activity. Moderate-to-bright lighting is fine. The combination of open water plus structure gives them room to shoal and chase within the group.

Filtration, flow, lid

Tiger barbs appreciate moderate flow and good filtration, reflecting their stream origins. They're active and produce moderate waste, so reliable filtration and water changes matter. A lid is sensible, as active fish can jump.

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Feeding Guide

Tiger barbs are unfussy omnivores with hearty appetites — among the easiest fish to feed.

What to feed

• Quality flake and pellets — a convenient staple.
• Live and frozen daphnia, baby brine shrimp, and bloodworm — relished, excellent for colour and conditioning.
• Some vegetable/spirulina content for balance.

How often

Feed two to three small meals daily. Their high activity means they have good appetites, but avoid overfeeding. A varied diet keeps their colours bold. Well-fed, well-exercised tiger barbs in a good shoal are also less likely to redirect boredom-driven nipping at tank mates — feeding and group size together manage their behaviour.

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Behavior and Temperament — The Shoaling Rule

Everything about tiger barb behaviour comes down to group size. They are semi-aggressive shoaling fish with a strong internal hierarchy: in a proper group of 8 or more, they spend their energy chasing, displaying, and jostling for rank within the shoal, creating a lively, fascinating dynamic while largely ignoring other fish. In small groups (2–4), that energy has nowhere to go and gets aimed at tank mates — relentless fin-nipping of slow and long-finned fish.

So the rules are: keep at least 8 (more is better), provide swimming room and some structure, and avoid long-finned and slow tank mates regardless of group size, since even a well-managed shoal may occasionally nip a tempting target like a betta or angelfish. Within a good shoal, tiger barbs are bold, active, constantly in motion, and genuinely entertaining — a centerpiece of energy and colour. Misjudge the group size and they become the tank's troublemakers; this single factor defines the species.

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Compatibility

Tiger barbs suit a robust, active community of fast, similarly-tempered fish — and should never be mixed with long-finned or slow species.

Good tank mates: other tiger barbs (a big shoal is the foundation), zebra danio, denison-barb, clown loach, bristlenose pleco, siamese algae eater, congo tetra (in large tanks with a big barb shoal), and other fast, robust fish.

Poor/dangerous tank mates:

• Bettas, angelfish, gouramis, guppies — long fins are irresistible nip targets.
• Slow or shy fish — harassed and stressed.
• Small timid nano fish — intimidated.

The rule of thumb: pair tiger barbs only with fast, robust, short-finned fish, and keep a big shoal. Use the compatibility checker to plan a suitably active community.

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Breeding Guide

Tiger barbs are egg-scatterers that are relatively easy to breed. Sexing: males are slimmer, smaller, and more intensely coloured (often with a bright red nose and red fin edges); females are larger and rounder, especially when full of eggs.

Condition a group on rich live foods, then move a chosen pair to a separate breeding tank with soft, slightly acidic water, dense fine-leaved plants or a spawning mop, and ideally a mesh or marble layer to protect the eggs (tiger barbs eagerly eat their own eggs). The pair spawns among the plants, scattering eggs. Remove the adults immediately after spawning. Eggs hatch in a day or two, and the fry become free-swimming after a few more days, reared on infusoria, then microworms and baby brine shrimp. The fry grow quickly. Breeding is straightforward; the main task is protecting the eggs from the parents.

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Health and Disease

Tiger barbs are hardy, and disease is uncommon with good care.

Ich can follow temperature swings or stress; treat promptly. Bacterial and fungal infections follow poor water or injury (including nip wounds from intra-shoal squabbles in too-small a group). Stress from inadequate group size manifests as aggression rather than illness, but chronic stress and poor conditions still undermine health. Newly added fish settle quickly given a proper shoal.

Prevention: a stable, cycled tank with good filtration and flow, a proper shoal of 8+, swimming room, a varied diet, appropriate (fast, robust) tank mates, and quarantine of new arrivals. Given those, tiger barbs are robust, long-lived, and trouble-free — their famous "problem" is behavioural and solved by group size, not a disease issue.

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Interesting Facts

• Shoal size is everything. The notorious fin-nipping is almost entirely a function of group size — eight or more, and their aggression turns inward.
• A built-in pecking order. Tiger barbs constantly chase and display to establish rank within the shoal, a fascinating, ever-shifting dynamic.
• Colourful variants. Green (moss), albino, and gold tiger barbs are all line-bred forms of the same species.
• Energetic stream fish. From active Southeast Asian streams, they love swimming room and moderate flow.
• Easy egg-scatterers. They breed readily; the challenge is protecting the eggs from the egg-eating parents.

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Bringing It Together

The tiger barb is a bold, active, colourful, hardy fish whose entire reputation hinges on one rule: keep a shoal of at least 8. Do that, give them a 20-gallon-plus tank with swimming room and structure, clean well-oxygenated water with some flow, a varied diet, and only fast, robust, short-finned tank mates — and their famous fin-nipping energy turns into a lively internal hierarchy that makes them one of the most entertaining centerpiece shoalers in the hobby. Keep them in small numbers or with long-finned fish, and they become the tank's villains. Respect the shoaling rule and they're robust, long-lived, and a joy. Pair them with zebra danios, clown loaches, and a bristlenose pleco for an active community, and avoid the gentle cherry barb's long-finned tank mates. Plan the build with the AI Tank Blueprint generator and the compatibility checker.