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Longsnout distichodus

Distichodus lusosso

Fishes › Tetras, piranhas and pacus (Characiformes) › Distichodontidae (Distichodus and African characins)

The longsnout distichodus (Distichodus lusosso) is an African characin in the family Distichodontidae.

Intro from Wikipedia (CC BY-SA 4.0)

Aquarium hobby
Experience: Advanced
Longsnout distichodus
Photo: Natural History Museum, CC BY 4.0, via Wikimedia Commons
FamilyDistichodus and African characins
Adult lengthup to 15 in
WaterFreshwater
HabitatLives in freshwater

Care at a glance

Species-specific aquarium care

  • Tank: At least 90 in long and 30 in front to back for one adult (adults commonly reach about 15.0 in / 38 cm).
  • Water: Freshwater.
  • Temperature: 72–79°F (range recorded for this species).
  • Layout: An open-water swimmer: needs long, open swimming space with few obstacles.

Calculated from this species' own FishBase record: tank size from its typical adult length and swimming zone, water values from its recorded ranges. The group guide below fills in general care.

Care guide

Species care notes

  • Water: a fairly wide range, from slightly acidic to slightly alkaline, 72–79 °F, pH 6.5–7.5, 2–20 dGH.
  • Behaviour: temperament peaceful.
  • Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

  • Setup: “Not a good choice for the planted tank, as it will munch most greenery.”
  • Diet: “Omnivorous and will accept most foods offered.”

From the Seriously Fish profile for this species, which has the full habitat, maintenance, diet, behaviour and breeding write-up 167

Group care guide

Distichodus and African characins

Applies to most species in this group. Habitat: These African freshwater fishes inhabit rivers, lakes and ponds, ranging from large Distichodus to small stream-dwelling Nannaethiops (sixband, oneline). Individual species can differ, so compare with the species numbers above and the linked sources.

Temperature is sourced for sexfasciatus and unitaeniatus only. Large sexfasciatus/lusosso must not be housed using the small-characin allowance; affinis/noboli and bottom-oriented Nannocharax require species-specific sizing and diet verification. These two documented care models do not establish a uniform protocol for every listed species (sixband, oneline). Level reflects the large-species care model and is editorial.

Housing & setup

  • D. sexfasciatus: at least 240 × 90 × 60 cm, approximately 1,296 L for one; groups need substantially more space (sixband).
  • Nannaethiops unitaeniatus: 60 × 30 × 30 cm, approximately 54 L for a small shoal (oneline).
  • Large Distichodus: smooth rocks, wood and some water movement; most plants will be eaten (sixband).
  • Fit a heavy, tight cover for jumping Distichodus (sixband).
  • Nannaethiops: dense planting, floating cover and subdued lighting (oneline).

Sources 1136113711381139

Climate & lighting

Water71.6–78.8°F

Sources 1136113711381139

Diet

  • Distichodus: Spirulina flakes, blanched spinach and shelled peas (sixband).
  • Distichodus: earthworms, prawn and mussel (sixband).
  • Nannaethiops: small live/frozen invertebrates and algae-based food; dried food may initially be refused (oneline).

Sources 1136113711381139

Social life

  • Adult sexfasciatus can become aggressive; Nannaethiops is shy and peaceful and needs a shoal with gentle companions (sixband, oneline).

Sources 1136113711381139

Health watch

  • Ammonia toxicity from inadequate biofiltration (fish_health).
  • Parasitic skin and gill infections (fish_health).
  • Nutritional deficiencies from unsuitable diets (fish_health).

Sources 1136113711381139

Understanding the animal

In the wild

In the wild

From this species’ own FishBase record (habitat, bottom type, water and breeding data), not its family. Good care copies these conditions.1

Where it livesLives in freshwater.
Water it lives inFreshwater, 72–79 °F (22–26 °C).
ClimateTropical climate.

What this means for care

  • Keep water within its wild range, 72–79 °F.
  1. FishBase species summary: Distichodus lusosso
Native climate (measured)

Native climate (measured)

Warm-season highsabout 88°F (up to 92°F in the hottest sampled areas)
Cool-season lowsabout 65°F (down to 60°F in the coldest sampled areas)
Average temperature75–77°F across sampled records
Relative humidity74–81% on average (driest month about 70%)
Rainfallabout 1605 mm a year

Measured at 87 wild occurrence records sampled against WorldClim 2.1 climate data (1970–2000 averages). Air conditions in the range are ecological context, not enclosure settings: microhabitats such as burrows, leaf litter or basking rocks can be cooler, warmer or more humid.

From the sources

From the sources

Quoted from the matching sections of reputable sources for this exact species. Specialist databases are used first; Wikipedia (community-edited, CC BY-SA 4.0) only fills gaps. Other sources are short credited quotes.

OverviewThe longsnout distichodus (Distichodus lusosso) is an African characin in the family Distichodontidae. — Wikipedia (community-edited)
Where it livesHome ranges Population dynamics Growth parameters Max. ages / sizes Length-weight rel. Length-frequencies Mass conversion Recruitment Abundance Life cycle Reproduction Maturity Maturity/Gills rel. — FishBase
Appearance and sizeIt is a relatively large and well-built fish, attaining a maximum length of 38 cm. The body is a golden colour (most prominent in juveniles) with several vertical dark bands. Its back is well-arched, and it has reddish fins. — Wikipedia (community-edited)

Data and studies

The numbers

The numbers

Each bar is what one source reports. Where several sources weigh in, the dashed gold band marks their average.

Adult length

Average of sources14.9in
FishBase 16415
Seriously Fish species profiles 16714.8

Maximum recorded length. Measured as total length. Fish in home aquariums often stay smaller than wild records.

Water temperature

Average of sources72–79°F
FishBase 16472–79
Seriously Fish species profiles 16772–79

Range the species tolerates in nature; aim for the middle.

pH

Reported6.5–7.5
Seriously Fish species profiles 1676.5–7.5

Water hardness

Reported2–20dGH
Seriously Fish species profiles 1672–20

Sources for this sheet

  1. FishBase (Froese & Pauly, eds.), version 24.07 Peer-reviewed researchThe global scientific database on fishes, maintained by a consortium of research institutions; every value is referenced.
  2. Seriously Fish species profiles Experienced keeper or breederLong-running aquarium reference written and peer-checked by experienced fishkeepers and ichthyologists; each profile covers habitat, tank size, water, diet, behaviour and breeding.
  3. Seriously Fish: Distichodus sexfasciatus Experienced keeper or breederAdded in the 2026 source-checked care-guide review.
  4. Seriously Fish: Nannaethiops unitaeniatus Experienced keeper or breederAdded in the 2026 source-checked care-guide review.
  5. Merck Veterinary Manual: Disorders and Diseases of Fish Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
  6. Merck Veterinary Manual: Management of Aquarium Fish Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
  7. Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.