Eight-banded Barb

Eirmotus octozona

Photo of aquarium fish Eight-banded Barb
Natural range
  • Borneo area
  • Kalimantan area
  • Indonesia
  • Malaysia
  • Thailand
Cyprinids Conservation status: Data deficient DD

Family:Cyprinids (Cyprinidae)

A member of the family Cyprinidae, known as the Eight-banded Barb or Eight-striped Barb, scientifically named Eirmotus octozona, is a small schooling fish. It has a peaceful disposition and will perfectly complement a community of small freshwater fish, while being relatively easy to care for.

Required aquarium volume
from 54 L
Size in aquarium
3 – 4 cm
Temperature
22 – 26 °C
Temperament
Peaceful (regular)
Parameters
Temperature22 – 26 °C
Water pHSlightly acidic (5) – Neutral (7)
Water dHVery soft (1) – Medium hardness (8)
Water salinityno salt (freshwater)
Size in aquarium3 – 4 cm
Lifespan5 years
TemperamentPeaceful (regular)
Toward small fishnot a predator
Required aquarium volumefrom 54 L
Lightingdimmed
Substrateany, but dark
Water flownone or stagnant (no flow)
FeedingAny (universal)
KeepingGroup (8–10 individuals)

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Eight-banded Barb get?

An adult reaches 3–4 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Eight-banded Barb need?

The recommended volume is 54 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Eight-banded Barb need?

Temperature 22–26 °C, pH 5–7, hardness 1–8 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Eight-banded Barb live?

Around 5 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Eight-banded Barb aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Eight-banded Barb should be kept together?

Recommended setup: group (8–10 individuals). Ignoring this is a common cause of stress and disease.

What does Eight-banded Barb eat?

Diet type: any (universal). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Eight-banded Barb?

The scientific name of the species is Eirmotus octozona, family Cyprinids (Cyprinidae).

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