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Partipentazona Barb

Puntigrus partipentazona

Often mistaken for the Tiger Barb, this peaceful schooling fish thrives in calm, darkly lit waters and easily succumbs to extreme aggression.

Taxonomy
Class:Actinopteri
Order:Cypriniformes
Family:Cyprinidae
Genus:Puntigrus
Species:Puntigrus partipentazona

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Water Temperature

22 - 26 °C

pH Value

5 - 6.5

Water type

Freshwater

Tank level

Middle

Adult size

5 cm

Minimum tank volume

>= 60 L

Minimum group

>= 1

GH

1 - 8 dGH

KH

1 - 4 dKH

TDS

25 - 160 ppm

Conductivity

39 - 250 uS/cm

Species description

Geographical Origin and Habitat: Widely distributed in mainland Southeast Asia: Mekong and Chao Phraya river basins (Cambodia, Laos, Thailand, Vietnam). It is a typical inhabitant of slow-flowing waterways, oxbows, and lakes dominated by very turbid waters, dense marginal plant covers, and water lily carpets, rarely found in clear mountain waters.
Taxonomy and Morphology: Deep-bodied, compact, diamond-shaped Cyprinid. Commonly confused in the trade with the Tiger Barb (P. tetrazona), but the Partipentazona is distinguished by an irrefutable trait: it has 5 (rather than 4) vertical black bars, of which the central one is typically broken or present only as a distinct dark blotch on the base of the dorsal fin.
Social Behavior: The opposite of the quarrelsome Tiger Barb. The Partipentazona is a very shy, fearful, and extremely peaceful fish that rarely engages in conflict. Being strictly a schooling animal, a group of at least 8-10 individuals is the absolute minimum requirement; in smaller numbers they isolate themselves among vegetation refusing even to swim and feed.
Coloration and Sexual Dimorphism: The pale golden body is slashed by its glossy black vertical stripes. Dorsal and ventral fins feature intense blood-red spots. Healthy adult males show a pinkish salmon background coloration and are distinctly smaller and more slender than females, which appear pale, bulky, and with a very pronounced abdomen.

Care, breeding and tankmates

Aquarium Setup: A dark Asian aquarium is the ideal setup. Prime requirement: abundance of hiding places created by dense thickets of Cryptocoryne, Hygrophila, and rocks tangled with wood. Intense light terrifies them; dim the lamps with floating plants (Salvinia, Phyllanthus fluitans). A dark sandy bottom helps enhance the pinkish pigmentation of males.
Diet and Feeding: Micropredator in the wild, scouring tiny crustaceans and diatoms from foliage and the muddy bottom. It is totally omnivorous in the aquarium: it voraciously accepts quality crumbled dry food, but to maintain its immune system at maximum levels and encourage spawning, it must be fed alternately with live or frozen (Daphnia, Brine shrimp, Bloodworms).
Water Quality: Prefers rather acidic and soft waters compared to the Tiger Barb. The optimal pH is between 5.0 and 6.5 (maximum 7.0), and hardness must not exceed GH 8.0. Comfortable temperature between 22.0 and 26.0 °C (72-79 °F). The insertion of Catappa leaves to release soothing tannins is highly recommended.
Compatibility and Cohabitation: It is not a fin-nipper! Its tiny mouth and shy character make it an ideal companion even for fish with flowing fins like Betta splendens. Excellent coexistence with small Loaches (Pangio), peaceful Rasboras (Trigonostigma, Boraras), and small Loricariids. Incompatible with large fish, predators, or aggressive cichlids.
Aquarium Breeding: Free spawner. After furious and incessant courtship displays, males drive females into the meanders of the thickest bushes (Java Moss) where they expel clusters of eggs. Parental cannibalism is systematic: once spawning is complete, parents meticulously patrol the area eating every egg in sight. Separate tank with a protective net on the bottom is necessary.
Risks and Diseases: The main risk is rapid immune drop due to "chronic social stress" in the case of sparse schools, bright tanks, or boisterous tankmates, leading to the instantaneous onset of Velvet (Oodinium) or Ich. They are also intolerant of high nitrate levels in the water.

Geographic Origin and Distribution

Widely distributed in mainland Southeast Asia: Mekong and Chao Phraya river basins (Cambodia, Laos, Thailand, Vietnam). It is a typical inhabitant of slow-flowing waterways, oxbows, and lakes dominated by very turbid waters, dense marginal plant covers, and water lily carpets, rarely found in clear mountain waters.

Origin

Tropical oceans and reefsSouth and Southeast Asia

Fish profile

Temperament
Semi-aggressive
They possess an active, bold, and highly engaging temperament. They interact playfully within their own species constantly. They bring a vibrant and dynamic energy to any aquascape.
Diet
Omnivore
They are straightforward omnivores that accept most commercial diets. Crushed flakes and small pellets are eagerly consumed daily. Frozen cyclops helps maintain their striking black and red coloration.
Sex ratio
School
Maintain them in a sizable mixed-sex shoal of eight or more. Males display intensely vibrant colors when competing for female attention. Large groups ensure a visually spectacular and peaceful display.
Feeding frequency
Twice daily
Feed them twice a day with very small portions. Their tiny stomachs cannot handle massive singular feedings. They constantly forage among plants between their main meals.
Bioload
This smaller barb creates a moderate, easily manageable bioload. A standard filtration system keeps their water perfectly clean. They benefit greatly from consistent, small water changes.
Flow
Stagnant
They naturally inhabit sluggish streams and prefer moderate flow. Gentle currents encourage them to school tightly together beautifully. High turbulence makes them skittish and prone to hiding.
Reproduction
Oviparous
They are typical egg-scatterers that breed quite readily. Fine-leaved plants or spawning mops are necessary for egg attachment. They will ravenously eat their own eggs if left in the tank.
Compatibility & tankmates
They are slightly more peaceful than the standard Tiger Barb. They still require robust tankmates to prevent minor fin-nipping. A spacious community tank suits their active lifestyle well.
Tank level
Middle
They are predominantly mid-water dwellers in the aquarium. They actively swim back and forth across the open spaces. They use tall background plants to rest during the night.

Window to the official scientific data of the species

Data synced on: 06/15/2026

Scientific Parameters & Models

Trophic level
2.9 ± 0.34 se
Resilience
High (less than 15 months)
Phylogenetic uniqueness (PD50)
0.5312
Bayesian Length-Weight
a = 0.00955, b = 2.96
VulnerabilityLow vulnerability (10 / 100)

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 06/30/2026
Partipentazona Barb (Puntigrus partipentazona) Care Guide & Tank Setup | Atlarium