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Fish Freshwater Care: hard Semi-aggressive

Leopold's Angelfish

Pterophyllum leopoldi
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Other names: Leopoldi, Leopoldi angel, Pterophyllum dumerilii
Group: American cichlids · Family: Cichlidae · Origin: South America — Amazon basin (Brazil) and Guyana

The smallest angelfish species; it differs from the common angelfish by its straight forehead profile and the dark spot at the base of its dorsal fin. It needs soft, acidic water and a group; mostly kept by enthusiasts.

Will it suit my tank?

Last updated October 16, 2026

Temperature
26–30°C
pH
5.5–7
Hardness
1–8 dGH
Adult size
12 cm
Minimum tank size
200 liters
Lifespan
8–12 years
Social structure
School
Group
at least 4, ideally 6+
Swimming zone
Middle
Diet
Omnivore
Breeding
Substrate spawner

Water parameters

Temperature26–30°C
pH5.5–7
General hardness (GH)1–8 dGH
Recommended range
Long-finned Eats small fish Eats shrimp Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

Leopold's angelfish is the smallest and least known species of the genus Pterophyllum. The dark vertical bands on its silver body resemble those of the common angelfish, but its forehead profile is straight and there is a distinct dark spot at the base of the dorsal fin. Its fins are shorter, so its body looks stockier. It is rare in the trade and is sold as wild-caught or as a small number of captive-bred fish.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 200 liters for a group of 4–6; water height of 45–50 cm or more.
  • Soft, slightly acidic water at 27–29°C; a tannin-rich setting with leaves and roots.
  • Vertical roots, tall plants and dim light; a quiet corner.
  • A 25–30% water change weekly; avoid sudden changes in values.

Diet

October 16, 2026 · Suggest an edit

Omnivorous. Alongside small granules and flakes, offer frozen brine shrimp, bloodworms and mosquito larvae. Newly arrived fish may at first accept only frozen food.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Calm and shy; it becomes bolder in a group. Like the common angelfish, it may eat small fish that fit in its mouth.

Good companions: medium-sized tetras (rummy-nose tetra, Congo tetra), corydoras, otocinclus, Biotodoma, discus.

Avoid: very small fish such as neons and cardinals, fin-nipping barbs, aggressive cichlids, shrimp.

A short profile for this species

The Leopold's Angelfish page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026