Leopold's Angelfish (Wild)

Pterophyllum leopoldi, or Leopold's angelfish, is the rarest and smallest of the three Pterophyllum species. Wild-caught specimens from the Rio Solimões and Rio Amazonas are distinguished by a distinctive pre-dorsal dark blotch, a more square-shaped body profile, and generally more subdued but intricate body patterning compared to P. scalare and P. altum.

Leopoldi angels inhabit fast-moving, moderately acidic waters associated with rocky substrates and submerged woody debris — a somewhat different microhabitat from the calm floodplain pools preferred by P. scalare. This gives them a slightly more robust, streamlined build adapted to stronger currents.

This species is rarely available in the hobby and is of great interest to specialist cichlid keepers and conservation-minded aquarists. They require near-wild water chemistry and are not recommended for beginners. Captive breeding of this species remains uncommon.

Water: Temperature 25–29°C, pH 4.8–6.2, GH 0–6, KH 0–3; use softened or RO water blended with tap; frequent small water changes. Tank: 200 L minimum with height ≥60 cm; provide driftwood, smooth pebbles, and moderate flow replicating the rocky stream habitat. Feeding: Live and frozen prey — bloodworm, artemia, mosquito larvae; coax onto quality pellets over time. Breeding: Very rarely bred in captivity; requires precise water chemistry and conditioned pairs; spawning behaviour similar to P. scalare. Compatibility: Species tank or with small, non-competitive Amazonian fish; avoid boisterous or aggressive tank mates.