TankStocking

Can Betta (Siamese Fighting Fish) live with Tiger Barb?

No — not recommended for most keepers. As set up here, Betta (Siamese Fighting Fish) and Tiger Barb should not share a tank. Here is why, and what to keep instead.

By the TankStocking team · methodology-driven, sourced from aquarium care references Data v2026.06 · last reviewed How we judge this →

The planner's verdict

Betta (Siamese Fighting Fish) + Tiger Barb

! Worth a closer look

1× Betta (Siamese Fighting Fish), 6× Tiger Barb

The engine flags this pairing on welfare grounds — see why below, and what to keep instead.

Load this build in the planner ↑

Betta (Siamese Fighting Fish) vs Tiger Barb: key facts

A neutral, side-by-side look at each species' sourced stats. These are figures only — the verdict above states whether they should share a tank.

Key facts side by side — Betta (Siamese Fighting Fish) vs Tiger Barb (sourced stats only)
Key factBetta (Siamese Fighting Fish)Tiger Barb
Adult size6.5 cm7 cm
Minimum tank5 US gal20 US gal
Minimum group1 (keep singly)6+ (shoal)
TemperamentTerritorialSemi-aggressive
Temperature range24–28°C20–26°C
pH range6–7.56–7.5
BioloadLowMedium
Swim levelAll levelsMidwater
Beginner-friendlyYesYes

Why, at a glance

Drawn straight from the sourced figures above, using the same thresholds the engine applies — these show the data behind the verdict, not a separate opinion.

Temperature range overlap — Betta (Siamese Fighting Fish) vs Tiger Barb Shared temperature window: 24–26°C (2°C overlap). Both ranges include it. Betta (Siamese Fighting Fish): 24–28°C Tiger Barb: 20–26°C shared 14°C32°C
Temperature range overlap. Shared temperature window: 24–26°C (2°C overlap). Both ranges include it.
pH range overlap — Betta (Siamese Fighting Fish) vs Tiger Barb Shared pH range: 6–7.5. Both prefer water within it. Betta (Siamese Fighting Fish): 6–7.5 Tiger Barb: 6–7.5 shared 5.58.5
pH range overlap. Shared pH range: 6–7.5. Both prefer water within it.
Adult size to scale — Betta (Siamese Fighting Fish) vs Tiger Barb Tiger Barb (7 cm) is 1.1× the length of Betta (Siamese Fighting Fish) (6.5 cm) — under the 3.5× size gap that flags predation risk. Betta (Siamese Fighting Fish): 6.5 cm Tiger Barb: 7 cm 22.8 cm = 3.5× line 0 cm
Adult size to scale. Tiger Barb (7 cm) is 1.1× the length of Betta (Siamese Fighting Fish) (6.5 cm) — under the 3.5× size gap that flags predation risk.
Sources & confidence (2 species)

These back the Betta (Siamese Fighting Fish) and Tiger Barb figures used for this verdict. Each figure is read from the TankStocking species database (v2026.06); below is the care reference behind it and how confident we are in that data. Confidence reflects the source quality, not whether any pairing is safe. Full source list and the welfare model are on the methodology page.

  • Betta (Siamese Fighting Fish) Betta splendens — Seriously Fish (seriouslyfish.com/species/betta-splendens) high confidence
  • Tiger Barb Puntigrus tetrazona — Seriously Fish (Puntigrus tetrazona) seriouslyfish.com/species/puntigrus-tetrazona high confidence

Why

  • Betta (Siamese Fighting Fish) can be territorial — give broken sightlines and space, and watch for bullying.
  • Tiger Barb may nip the long fins of Betta (Siamese Fighting Fish).
Why this doesn't work: Betta (Siamese Fighting Fish) can be territorial — give broken sightlines and space, and watch for bullying. Rather than force it, keep Betta (Siamese Fighting Fish) with tankmates the engine clears — see the engine-cleared alternatives below.

Engine-cleared alternatives for Betta (Siamese Fighting Fish)

Tankmates the engine clears with Betta (Siamese Fighting Fish) — tap to load the pairing. "Engine-cleared" means they pass the welfare checks; still research each before committing.

Amano ShrimpBamboo Shrimp (Wood/Fan Shrimp)Ghost Shrimp (Glass/Grass Shrimp)Mystery SnailAssassin SnailCherry ShrimpNerite Snail

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      Verdict

      Common questions

      Can Betta (Siamese Fighting Fish) live with Tiger Barb?

      No — not recommended for most keepers. As set up here, Betta (Siamese Fighting Fish) and Tiger Barb should not share a tank. Here is why, and what to keep instead. TankStocking's engine reaches this by checking minimum tank size, group needs, temperature overlap, aggression, predation by size and fin-nipping for this exact pairing.

      What should I keep with Betta (Siamese Fighting Fish) instead of Tiger Barb?

      Betta (Siamese Fighting Fish) and Tiger Barb should not share a tank (betta (siamese fighting fish) can be territorial — give broken sightlines and space, and watch for bullying). Instead, keep Betta (Siamese Fighting Fish) with tankmates the engine clears, such as Amano Shrimp, Bamboo Shrimp (Wood/Fan Shrimp), Ghost Shrimp (Glass/Grass Shrimp), Mystery Snail. See the Betta (Siamese Fighting Fish) tank mates guide for the full list.

      Related to Betta (Siamese Fighting Fish) & Tiger Barb

      Related guides on TankStocking — each scored by the same welfare engine as the planner.

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      This is a planning estimate based on sourced species data — individual fish vary. See the methodology, the Betta (Siamese Fighting Fish) tank mates guide, or the full fish list.