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Species profile

Leopold’s Angelfish

Pterophyllum leopoldi

Common names: Leopold's Angelfish, Dwarf Angelfish

Recognized speciesCichlids
Leopold's Angelfish (Pterophyllum leopoldi)

Adult size

Up to 15 cm

Typical adult length 10–15 cm.

Up to 15 cm

Countries of origin

  • See all stock from Brazil
  • See all stock from Guyana

Good fit for your tank?

Good fit for

  • Mature planted aquarium setups
  • Intermediate shrimp keepers

Think carefully if

  • The aquarium contains shrimp-eating fish
  • The tank is newly cycled
  • Water conditions change frequently

The smallest recognised angelfish species, a social Amazonian cichlid requiring a tall calm aquarium and group structure.

Appearance and Identification

A relatively compact angelfish with a straighter forehead than P. altum, a dark bar through the eye, vertical body bars, and a small predorsal mark.

It is smaller and more elongated than many P. scalare forms. The predorsal notch and bar pattern are useful, but provenance remains important.

External sex differences are weak. Mature males may be larger, but breeding tubes and pair behaviour are more reliable.

Tank Requirements

Suggested filter
About 500–750 litres an hour
Suggested heater
About 250–375 W for this tank
Minimum tank volume
250 litres
Minimum tank length
120 cm
Minimum group size
5
Recommended group size
6
Activity level
Moderate
Flow preference
Low
Planting preference
Moderately planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Use a tall mature aquarium with branches, plants, open vertical swimming room, subdued light, and gentle filtration. Keep a group until pairs form.

Behaviour and Tankmates

Generally calm and social, becoming territorial after pairing.

Maintain a group of juveniles or adults with enough room for pair separation.

Pairs defend vertical spawning surfaces and nearby cover.

Keep with calm warm-water fish. Very small fish and shrimp may be eaten.

Check tankmates for this species

Water Parameters

Temperature
25–29 °C
pH
5–7
GH
1–8
KH
0–4
TDS
30–160
Stability importance
Important

Warm soft slightly acidic water is preferred, especially for wild fish and breeding.

Parameter caveat
Avoid fin-nippers, sudden cool changes, and very bright open tanks.

Feeding

Diet types
Insectivore, Omnivore
Feeding frequency
Daily
Preferred foods
  • Live baby brine shrimpUseful for conditioning adults and feeding juveniles; rinse before use.
  • Daphnia, cyclops, or mosquito larvaeSmall moving prey encourages natural feeding behaviour.
  • Frozen brine shrimp or mysisOffer thawed portions sized for the fish.
  • High-quality cichlid micro-pelletUse as part of a varied diet after the fish accepts prepared food.

An omnivorous micropredator taking insects, crustaceans, worms, and prepared foods.

Offer varied small meals and ensure all group members receive food.

Breeding

Breeding type
Egg Layer, Substrate Spawner
Breeding difficulty
Moderate
Breeding temperature
27 °C
Breeding pH
6.2
Brood or egg count
Several hundred eggs.
Incubation
3 days
Parental care
Biparental care
Baby foods
  • Newly hatched brine shrimpPrimary food for free-swimming fry; feed small rinsed portions several times daily.
  • MicrowormsUseful supplementary food for small fry near the substrate.
  • Fine powdered fry foodUse sparingly and remove uneaten material.

A biparental substrate spawner placing eggs on vertical leaves, wood, or similar surfaces.

Habitat and Origin

Geographic origin
Amazon Basin, Brazil, Guyana, South America
Natural habitat
Blackwater, Clearwater, Floodplain, Vegetated Shoreline
Aquarium contexts
Breeding Aquarium, Freshwater Aquarium, Freshwater Community, Large Freshwater Aquarium, Planted Aquarium
Audience level
Intermediate

Classification

Profile type
Recognized species
Genus
Pterophyllum
Family
Cichlidae
Species group
Cichlids, Fish, South American Cichlids

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