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No federal permit to keep

Rio Negro Chocolate Cichlid

Hypselecara coryphaenoides

Fishes › Cichlids (Cichliformes) › Cichlidae (Cichlids)

Hypselecara coryphaenoides is a small species of fish in the family Cichlidae.

Aquarium hobby
Experience: Intermediate
Rio Negro Chocolate Cichlid
Photo: (c) Michael Bakker Paiva, some rights reserved (CC BY), CC BY 4.0, via iNaturalist
FamilyCichlids
Adult lengthup to 6.3 in
WaterFreshwater
HabitatLives in freshwater

Care at a glance

Species-specific aquarium care

  • Tank: At least 30 in long and 12 in front to back for one adult (adults commonly reach about 6.3 in / 16 cm).
  • Water: Freshwater.
  • Temperature: 72–86°F (range recorded for this species).
  • pH: 5–6.
  • Hardness: 0.5–1 dGH.
  • Layout: Uses both the bottom and open water: give open swimming space plus cover near the substrate.
  • 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.
  • Availability: Rarely or never seen in the aquarium trade; expect to source it from specialists or not at all.

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 47 × 18 in (roughly 64 US gallons); space needed is rated “large tank”.
  • Water: soft, acidic water, 75–86 °F, pH 5–6.5, 1–10 dGH.
  • Behaviour: temperament fights its own.
  • Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

  • Setup: “If you really want to see it at its best, a biotope setup would be very simple to arrange.”
  • Diet: “Omnivorous and easy to feed.”
  • Tankmates: “Fairly peaceful for a cichlid of this size, tending to ignore other species unless spawning.”
  • Breeding: “It's a substrate spawning species that forms monogamous pair bonds.”

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

Group care guide

Central and South American cichlids

Applies to most species in this group. Habitat: Rivers and lakes of the Americas. Individual species can differ, so compare with the species numbers above and the linked sources.

Housing & setup

  • Size ranges widely, from convicts at 5 in to Parachromis over 20 in; plan tank size for the adult fish.
  • Most tolerate neutral, moderately hard water; strong filtration and rock or wood caves.

Sources 117119164

Climate & lighting

Water75–82°F

Sources 117119164

Diet

  • Omnivorous cichlid pellets plus vegetables for herbivores (Vieja, Uaru) and meaty foods for predators (Parachromis).

Sources 117119164

Social life

  • Territorial; breeding pairs can clear a whole tank.

Sources 117119164

Health watch

  • Aggression and territorial injuries, especially when breeding; hole-in-the-head in poor water.

Sources 117119164

Understanding the animal

This species is part of a group that hobbyists, aviculturists or zoos keep widely (Cichlids), so it's included for completeness. It may be rare in captivity itself, or not kept at all. Use the group guide as a starting point and look for species-specific advice from experienced keepers.
About this animal

About this animal

It is native to South America. It can reach a length of 16 centimeters (6.3 in).

Quoted from the Wikipedia article “Hypselecara coryphaenoides” (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. Uses both the bottom and open water. In blackwater rivers. Maximum length 22 cm TL.
Water it lives inFreshwater, 72–86 °F (22–30 °C), pH 5–6, hardness 0.5–1 dH.
ClimateTropical climate.
Wild dietHunting macrofauna (predator).
Behavior to plan forBreeding: clutch tenders.

What this means for care

  • Keep water within its wild range, 72–86 °F.
  1. FishBase species summary: Hypselecara coryphaenoides
Native climate (measured)

Native climate (measured)

Warm-season highsabout 91°F (up to 95°F in the hottest sampled areas)
Cool-season lowsabout 71°F (down to 69°F in the coldest sampled areas)
Average temperature79–82°F across sampled records
Relative humidity77–84% on average (driest month about 75%)
Rainfallabout 2369 mm a year

Measured at 81 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.

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
ReproductionBoth parents guard eggs and larvae. — FishBase
BiologyMaximum length 22 cm TL. — 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 sources6.1in
FishBase 1646.3
Seriously Fish species profiles 1675.9

Maximum recorded length. Measured as standard length (snout to the base of the tail, not counting the tail fin). Fish in home aquariums often stay smaller than wild records.

Water temperature

Average of sources73.5–86°F
FishBase 16472–86
Seriously Fish species profiles 16775–86

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

pH

Average of sources5–6.2
FishBase 1645–6
Seriously Fish species profiles 1675–6.5

Water hardness

Average of sources0.8–5.5dGH
FishBase 1640.5–1
Seriously Fish species profiles 1671–10

Minimum tank footprint

Reported47in
Seriously Fish species profiles 16747

Seriously Fish recommends a tank base of at least 47 × 18 in (about 64 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. Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.