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No federal permit to keep

Freshwater butterflyfish

Pantodon buchholzi

Fishes › Arowanas and elephantfish (Osteoglossiformes) › Pantodontidae (Freshwater butterflyfish)

The freshwater butterflyfish or African butterflyfish (Pantodon buchholzi) is a species of osteoglossiform fish native to freshwater habitats in the Niger and Congo basins of Western and Central Africa.

Aquarium hobby
Experience: Advanced
Freshwater butterflyfish
Photo: Toniher, CC BY-SA 3.0, via Wikimedia Commons
FamilyFreshwater butterflyfish
Adult lengthup to 4.7 in
WaterFreshwater
HabitatLives in freshwater

Care at a glance

Species-specific values

Values researched for this exact species. Where they differ from the group guide below, follow these. Air, surface and water temperatures are listed separately, and each source is kept as published rather than averaged.

Water temperature73–86 °F (23–30 °C)
Seriously Fish aquarium recommendation; not a wild collection measurement.
281
Water pH6–7.5 pH
Seriously Fish aquarium recommendation; not a wild collection measurement.
281
Water general hardness5–15 dGH
Seriously Fish aquarium recommendation; not a wild collection measurement.
281
Maximum standard length120 mm SL
Source maximum; not total length or a guaranteed adult size.
281
Minimum tank dimensionslength: 90 cm; width: 30 cm; height: 30 cm
Surface area matters most; the source prefers greater width where possible.
281
Preferred water temperature77–80 °F
Preference within the broader 23–30°C source range, not a replacement for it.
281
DietSurface-fed insects and other suitable live/frozen invertebrates; ensure food remains accessible at the surface.281
Enclosure requirementsGentle surface movement, floating cover and a tightly secured lid; avoid swallowable fish and fin nippers.281

Species-specific aquarium care

  • Tank: At least 30 in long and 12 in front to back for one adult (adults commonly reach about 4.7 in / 11.9 cm).
  • Water: Freshwater.
  • Temperature: 73–86°F (range recorded for this species).
  • Layout: An open-water swimmer: needs long, open swimming space with few obstacles.
  • Diet: A predator: feed meaty foods sized to its mouth (frozen fish, shrimp, worms); it will eat tankmates that fit in its mouth. FishBase classes it as a carnivore.

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

  • Tank: a base of at least 35 × 12 in (roughly 21 US gallons); space needed is rated “large tank”.
  • Water: a fairly wide range, from slightly acidic to slightly alkaline, 73–86 °F, pH 6–7.5, 5–15 dGH.
  • Behaviour: temperament predatory.
  • Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

  • Setup: “This species does best in slightly soft, acidic water, preferably stained with tannins.”
  • Diet: “It is mainly an insectivore in nature and a varied diet of live and frozen foods such as bloodworm, brine shrimp, prawn, small mealworms etc.”
  • Tankmates: “The butterfly fish is generally quite peaceable, but its trailing finnage offers irresistible temptation to fin-nipping species.”
  • Breeding: “Not easy but it is possible.”

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

Group care guide

Bonytongues, knifefish and elephantnoses

Applies to most species in this group. Habitat: Tropical rivers. Individual species can differ, so compare with the species numbers above and the linked sources.

Housing & setup

  • Very large tanks for arowanas and knifefish; jumpers need tight lids. Elephantnoses need soft substrate and dim light.

Sources 117119164118

Diet

  • Live and frozen meaty foods.

Sources 117119164118

Health watch

  • The Asian arowana is endangered and illegal to own in the U.S.

Sources 117119164118

Understanding the animal

About this animal

About this animal

It is the only extant species in the family Pantodontidae. Despite the name, it is not closely related to saltwater butterflyfishes.

Quoted from the Wikipedia article “Freshwater butterflyfish” (CC BY-SA 4.0) 174

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, in rivers and streams, lakes. Pantodon buchholzi is a creature from calm waters.
Water it lives inFreshwater, 73–86 °F (23–30 °C).
ClimateTropical climate.
Wild dietHunting macrofauna (predator).
Behavior to plan forBreeding: open water/substratum egg scatterers.

What this means for care

  • Keep water within its wild range, 73–86 °F.
  1. FishBase species summary: Pantodon buchholzi
Native climate (measured)

Native climate (measured)

Warm-season highsabout 88°F (up to 91°F in the hottest sampled areas)
Cool-season lowsabout 67°F (down to 63°F in the coldest sampled areas)
Average temperature76–80°F across sampled records
Relative humidity80–83% on average (driest month about 76%)
Rainfallabout 1690 mm a year

Measured at 82 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 freshwater butterflyfish or African butterflyfish (Pantodon buchholzi) is a species of osteoglossiform fish native to freshwater habitats in the Niger and Congo basins of Western and Central Africa. It is the only extant species in the family Pantodontidae. Despite the name, it is not closely related to saltwater butterflyfishes. — 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
ReproductionThe eggs have a diameter of about 1.5 mm. — FishBase
Appearance and sizeThe freshwater butterflyfish is a relatively small species, usually reaching no more than 13 cm in length. Its pectoral fins are very large relative to body size. It has a large and well-vascularized swim bladder, enabling it to breathe air at the surface of the water. — Wikipedia (community-edited)
BiologyObligate air-breathing; Pantodon buchholzi is a creature from calm waters. It lives in swamps, creeks and backwaters, and inhabits the calmer parts of rivers, where it can be seen on the surface waters. They are capable to jump out of the water, to search for insects or to escape from predators. — FishBase

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 sources4.7in
FishBase 1644.7
Seriously Fish species profiles 1674.7

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

Water temperature

Average of sources73–86°F
FishBase 16473–86
Seriously Fish species profiles 16773–86

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

pH

Reported6–7.5
Seriously Fish species profiles 1676–7.5

Water hardness

Reported5–15dGH
Seriously Fish species profiles 1675–15

Minimum tank footprint

Reported35in
Seriously Fish species profiles 16735

Seriously Fish recommends a tank base of at least 35 × 12 in (about 21 US gallons).

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. Merck Veterinary Manual: Management of aquarium fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  4. Merck Veterinary Manual: Types and features of aquatic systems Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  5. Merck Veterinary Manual: Nutritional diseases of fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  6. Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.
  7. iNaturalist (captive observations) Community referenceCommunity observation platform run by the California Academy of Sciences and National Geographic; observations marked captive show animals living in homes, zoos and aquariums.