Panchax

Aplocheilus panchax

Photo of aquarium fish Panchax
Natural range
  • Bangladesh
  • Cambodia
  • India
  • Indonesia
  • Malaysia
  • Myanmar
  • Nepal
  • Pakistan
  • Singapore
  • Sri Lanka
  • Thailand
  • Vietnam
Killifish Conservation status: Least concern LC

Family:Aplocheilidae

Other scientific names: Aplocheilus andamanicus, Aplocheilus armatus, Aplocheilus buchanani, Aplocheilus chrysostigmus, Aplocheilus dorsomarginatus, Aplocheilus javanica

The scientific name Aplocheilus panchax indicates that this fish belongs to the family Aplocheilidae. Known as Panchax, this killifish is one of the most popular and recognizable among aquarists, largely due to the wide variety of artificially bred strains with vibrant and expressive coloration. It is this combination of a bright color palette, as well as unpretentiousness and hardiness, that has brought Panchax its well-deserved popularity. This species can successfully live in both brackish and fresh water, making it an excellent choice for beginner aquarists.

Required aquarium volume
from 80 L
Size in aquarium
10 cm
Temperature
20 – 25 °C
Temperament
Semi-peaceful
Parameters
Temperature20 – 25 °C
Water pHSlightly acidic (6) – Slightly alkaline (8)
Water dHSoft (5) – Very hard (19)
Water salinityvery low (up to ~3 g/L)
Size in aquarium10 cm
Lifespan5 years
TemperamentSemi-peaceful
Toward small fisha risk to small fish
Required aquarium volumefrom 80 L
Lightingmoderate (regular)
Substrategravel (regular)
Water flowweak
Swimming levelnear the surface
FeedingMeat with plant additives
KeepingHarem
Jumpingnoticeable

Frequently asked questions

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

How big does Panchax get?

An adult reaches 10 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Panchax need?

The recommended volume is 80 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Panchax need?

Temperature 20–25 °C, pH 6–8, hardness 5–19 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Panchax live?

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

Is Panchax aggressive?

Temperament: semi-peaceful (dangerous to smaller ones). Not a predatory species, but small fish that fit in its mouth will eventually be eaten.

How many Panchax should be kept together?

Recommended setup: harem (1 male and several females). Ignoring this is a common cause of stress and disease.

What does Panchax eat?

Diet type: meat with plant additives (omnivores). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Panchax?

The scientific name of the species is Aplocheilus panchax, family Aplocheilidae. It also appears in the literature as: Aplocheilus andamanicus, Aplocheilus armatus, Aplocheilus buchanani.

Plants and this fish

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