Pterophyllum scalare

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Pterophyllum scalare, also known as GoldFace, is a captive-bred form of the popular freshwater angelfish. Its tall, laterally compressed body, elongated fins and golden facial mask give it a striking presence in a planted aquarium. Native to slow-moving waters in South America, it prefers warm, stable and well-maintained water. This variety is very common in the aquarium trade. Despite its peaceful appearance, the species remains a cichlid capable of defending a territory, especially as a pair or during spawning. A tall aquarium, structured vegetation and carefully selected tank mates support its well-being and natural behaviour.

General species description

Pterophyllum scalare belongs to the genus Pterophyllum, within the family Cichlidae. Its laterally compressed body and strongly extended dorsal and anal fins create an almost triangular profile, suited to moving among stems and submerged roots. The GoldFace form is distinguished by golden or yellow colouring on the head and front part of the body, usually combined with vertical markings inherited from angelfish strains. Colour may vary with age, mood, lighting and water quality. This is a social cichlid that may live in a group when young, then form pairs and establish a territory as an adult. It suits a spacious community aquarium, although it may consume very small fish. An aquarium at least 50 cm tall is preferable for normal fin development. The species is generally easy to find and presents no particular supply difficulty.

Geographical origin and biotope

Geographical origin and reference countries: Brazil, Peru, Colombia and Guyana. The species is associated with the Amazon Basin and nearby areas of northern South America. The type locality is linked to the Rio Negro in Brazil, while populations occur in various calm tributaries, floodplains and forested waters. Its biotope includes slow to moderately moving water, often stained by tannins released from leaves and submerged wood. Riparian vegetation provides shade, shelter and vertical surfaces used for spawning. In an aquarium, this setting can be suggested with roots, tall plants and subdued lighting. Soft to moderately mineralized water, slightly acidic to neutral, is generally suitable. Above all, parameters should remain stable, since sudden changes can affect health and behaviour.

Specific locality and local name

The reference locality is the Rio Negro in the Amazon Basin of Brazil. The freshwater angelfish also occurs in several slow-water systems throughout Amazonia, where the natural limits between populations cannot always be summarized by a single river. In Brazil, the most common local name is acará-bandeira; peixe-anjo is also used in trade and aquarium language. The word acará is commonly applied to several South American cichlids, while bandeira refers to the fish’s tall, vertical fins, reminiscent of a flag. GoldFace is a trade name describing the head colour and not a separate species. To support natural behaviour, provide open swimming areas, vertical plants and roots that visually divide territories. Wild populations may differ in pattern or proportions, whereas fish sold under this name generally come from captive-bred lines.

Appearance and physical characteristics

Pterophyllum scalare has a tall, laterally compressed body covered with small scales. The dorsal and anal fins extend strongly backward, while the pelvic fins form long filaments. The base pattern is often silvery with dark vertical bars, but the GoldFace form adds a golden-yellow face and forehead. Colour intensity depends on the strain, age and maintenance conditions. Fins may be standard or longer according to the commercial line. At maturity, the total height including the fins often exceeds body length, which explains why a tall aquarium is more important than one that is only long. The mouth is terminal and the teeth are small; the species captures invertebrates, larvae and small fish. Adults may develop stronger contrast when they feel secure or when a pair defends a spawn. Sexual dimorphism is limited outside the breeding period.

General diet

Pterophyllum scalare is an omnivore with a carnivorous tendency and readily accepts a varied aquarium diet. A base of quality cichlid pellets can be supplemented with frozen or live foods such as brine shrimp, bloodworms and daphnia. Foods containing some plant matter may also be offered, without making the diet exclusively herbivorous. Young fish should receive small frequent meals, while adults generally do well with one or two moderate feedings per day. Variety helps maintain body condition and colour, but overfeeding quickly degrades water quality. Prey should match the mouth size and come from safe, hygienic sources. Mammalian foods and feeder fish should not be used as a regular staple because they are not a balanced diet. Remove uneaten food after a few minutes to support good water quality, which is essential for fish sensitive to waste accumulation and ammonia or nitrite spikes.

Essential data

• River of origin: Rio Negro, Brazil
• Local name: Acará-bandeira; peixe-anjo
• Origin of the scientific name: The genus describes the leaf-like form of the fins; the specific epithet refers to a ladder-like or banded pattern.
• Etymology of the full name: Pterophyllum comes from the Greek pteron, wing or fin, and phyllon, leaf; scalare means ladder-shaped.
• Common or vernacular names: Freshwater angelfish, angelfish, acará-bandeira, GoldFace
• Family: Cichlidae
• Subfamily: Cichlinae
• Name pronunciation: terr-oh-FILL-um skah-LAH-reh
• Discovery: Martin Hinrich Carl Lichtenstein, 1823
• Maximum adult size: About 15 cm body length; up to approximately 25 cm tall including the fins
• Water temperature and pH: 26 to 30 °C; pH 6.0 to 7.5
• Watercourse appearance and surrounding vegetation: Slow-moving water, wooded areas, roots, leaf litter, riparian plants and shaded sections
• Typical tank mates: Paracheirodon axelrodi, Hemigrammus rhodostomus, Brochis splendens, Otocinclus affinis, Ancistrus cirrhosus, Microgeophagus ramirezi
• Temperament and behaviour: Generally peaceful, schooling when young, territorial as a pair and protective while spawning
• Water depth: Calm and relatively deep areas of floodplains and forest tributaries
• Sexual dimorphism: Difficult to distinguish; the genital papilla is broader in females at spawning time
• Bottom structure and flow: Muddy or sandy bottom with leaves, wood and roots; low to moderate flow

In your aquarium

Success with Pterophyllum scalare depends mainly on a tall aquarium, warm water and consistent filtration without excessive current. Maintain stable water quality and provide plants or roots to reduce stress and structure territories. Small fish may be viewed as prey, especially as the angelfish mature. A varied diet, regular water changes and close observation while pairs form will help maintain vigorous specimens. Tank height, stable parameters and compatible tank mates are the key factors for keeping this very popular golden form successfully over the long term.