Bandula barb
Pethia bandula
Also known as Puntius bandula
Care at a glance
- Temperature
- 73–81°F (23–27°C)
- pH
- 6.0–7.2
- Adult size
- 2 in (5 cm)
- Minimum tank
- 20 gal (75 L)
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Medium
- Rarity
- Rare
- Origin
- A single stream near Galapitamada, Sri Lanka
- Family
- Cyprinidae
Overview
Keep this rare barb as a group of at least six to eight in a planted tank; it is peaceful and a little shy, and a school gives it confidence. It occupies the middle water and mixes well with other small, calm community fish. Feed small everyday foods, quality flake and micro-pellet, with regular frozen or live bloodworm, daphnia and brine shrimp for condition and color. Around 75 liters suits a group. Given how precarious the species is in the wild, keepers who spawn it help maintain the captive insurance stock that its survival now depends on.
In the wild
The Bandula barb survives in one short stretch of a single stream near Galapitamada in southwestern Sri Lanka, shaded lowland water running through paddy and rubber country. Give it soft, gently flowing, well-planted conditions with a dark substrate and some shade. Hold it at 23 to 27 degrees Celsius and slightly acidic to neutral, pH 6.0 to 7.2.
Good to know
Pethia bandula is a small barb of the family Cyprinidae reaching about 5 centimeters, the males barred in black over rosy flanks. It is one of the most range-restricted freshwater fish known and is listed as critically endangered. It scatters its eggs and is a moderate breeding challenge, and managed spawning underpins conservation efforts for the species.
Did you know
The whole wild population of the Bandula barb lives in roughly three kilometers of one Sri Lankan stream. Discovered in 1991 at around 2,000 fish, it crashed within a decade, prompting protected habitat and captive insurance populations.
Tank mates
Bandula barb is a peaceful, schooling species that keeps to the middle. These picks match on water type, temperature, pH, size and temperament.

Dwarf rainbowfish
Melanotaenia maccullochiFreshwater2.8 in (7 cm)20 gal (75 L)72–82°F (22–28°C)
Colombian Tetra
Hyphessobrycon columbianusFreshwater2.6 in (6.5 cm)20 gal (75 L)73–82°F (23–28°C)
Dwarf flag cichlid
Laetacara curvicepsFreshwater2.2 in (5.5 cm)20 gal (75 L)68–82°F (20–28°C)
Common spiny loach
Lepidocephalichthys thermalisFreshwater3.1 in (8 cm)20 gal (75 L)72–82°F (22–28°C)
Brilliant rasbora
Rasbora einthoveniiFreshwater3.5 in (9 cm)20 gal (75 L)72–82°F (22–28°C)
Emperor tetra
Nematobrycon palmeriFreshwater2 in (5 cm)20 gal (75 L)73–81°F (23–27°C)
Common questions
What size tank does a Bandula barb need?
A Bandula barb needs at least 20 gal (75 L). It spends most of its time in the middle.
What temperature and pH do Bandula barb need?
Bandula barb are comfortable at 73–81°F (23–27°C) with a pH of 6.0–7.2.
How big do Bandula barb get?
An adult Bandula barb reaches about 2 in (5 cm).
Do Bandula barb need a group?
Yes. Bandula barb are a schooling species and should be kept in a group, not singly.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Freshwater fish · Barbs, danios & rasboras · Schooling fish · Community fish
Keeping Bandula barb?
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Stoliczka's barb
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