Glofish Angelfish® Care Guide

Pterophyllum scalare

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Bioload Score

5000

Semi-AggressiveModerate
Max Size
15 cm / 5.9"
Temperature
24–28°C (75–82°F)
pH Range
6 – 7.5
Min Tank Size
200L (53 gal)
Min Group Size
Can be kept alone
Tank Level
Bottom-Mid
Origin
South America
Temperament
Semi-Aggressive
Difficulty
Moderate
Breeding Difficulty
Moderate

Diet

Omnivorous, accepting quality pellets and flakes alongside frozen or live foods such as bloodworms, brine shrimp and daphnia.

Community Compatibility

Suitable tankmates include peaceful medium-sized tetras, rasboras, corydoras and larger peaceful catfish, while fin-nippers and very small fish should be avoided.

Good to Know

GloFish Angelfish are fluorescent genetically modified color varieties of the South American freshwater angelfish, Pterophyllum scalare.

Gender Differences

Males may develop a fuller forehead and larger breeding papilla, but sexing is difficult outside spawning condition.

About the Glofish Angelfish®

GloFish Angelfish are selectively produced fluorescent forms of the familiar freshwater angelfish, with luminous red, orange, green or mixed coloration that stands out against their tall, laterally compressed bodies. Their elongated dorsal and anal fins give them an unmistakable triangular silhouette, while long thread-like pelvic fins add to their graceful appearance.The species is based on Pterophyllum scalare, a cichlid known for its calm, deliberate swimming style and strong social personality. Although often peaceful when young, adults can become territorial and may form pair bonds, especially during spawning. Their height and flowing fins make them visually distinctive among community aquarium fishes.Wild Pterophyllum scalare originates in slow-moving rivers, flooded forests and tributaries of the Amazon and adjacent South American drainage systems. These habitats are commonly shaded by overhanging vegetation and filled with submerged roots, branches and leaf litter, creating a complex environment through which angelfish navigate vertically.The GloFish form was developed through genetic modification research that introduced fluorescent protein genes, producing fish that glow under suitable aquarium lighting. Unlike a naturally occurring color morph, its vivid appearance is the result of biotechnology applied to an established aquarium species.Angelfish have been aquarium favorites for generations because of their elegant shape, intelligent behavior and fascinating courtship displays. GloFish Angelfish retain the characteristic body form and behavior of the species while adding a striking fluorescent appearance that makes their movements especially noticeable.

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