Altum Angelfish Care Guide

Pterophyllum altum

PeacefulModerateFreshwater
Max Size
18.0 cm / 7.0"
Temperature
26–28°C (78–82°F)
pH Range
6.0 – 7.0
Min Tank Size
200L (53 gal)
Min Group Size
5 fish
Tank Level
Bottom-Mid
Origin
South America
Temperament
Peaceful
Difficulty
Moderate
Breeding Difficulty
Moderate

Diet

Omnivorous. A varied diet with a mix of dry and live/frozen foods is recommended.

Community Compatibility

Peaceful community fish. Avoid keeping them with aggressive or fin-nipping species.

Good to Know

Altum Angelfish are more sensitive to water quality than most fish, so make sure your water parameters are monitored.

Gender Differences

Males and females are difficult to distinguish visually. Males may have a slightly larger and more pointed dorsal fin.

About the Altum Angelfish

The Altum Angelfish, scientifically known as Pterophyllum altum, is a majestic and sought-after species among aquarium enthusiasts. Originating from the Orinoco River basin in South America, these angelfish are renowned for their graceful appearance, tall body profile, and intricate fin extensions.

With their distinctive and elegant look, Altum Angelfish have a body shape that is more elongated compared to the common angelfish (Pterophyllum scalare). They feature long, trailing dorsal and anal fins, adding to their regal and ornamental appeal. The iridescent scales and intricate patterns further enhance their beauty.

In their natural habitat, Altum Angelfish inhabit slow-moving rivers and tributaries, often in areas with dense vegetation. To replicate this environment in captivity, provide a spacious aquarium with vertical swimming space and tall plants. Altums appreciate the presence of hiding spots and shaded areas, simulating the dimly lit conditions they encounter in the wild.

Feeding Altum Angelfish involves a varied diet that includes high-quality flakes, pellets, and frozen or live foods like brine shrimp and bloodworms. These angelfish are omnivorous, and a diverse diet contributes to their overall health and coloration.

Altum Angelfish are known for their sensitivity to water conditions, emphasizing the importance of maintaining stable parameters. Regular water changes and an efficient filtration system are crucial. They prefer slightly acidic to neutral pH levels and warmer temperatures typical of tropical aquarium setups.

Due to their tall body profile, Altum Angelfish are best kept in larger aquariums, providing them with sufficient space to swim and explore. While generally peaceful, they may display territorial behavior, especially during breeding. When kept in a community tank, choose tankmates carefully to avoid aggression.

Breeding Altum Angelfish can be challenging, and successful reproduction often requires specific conditions, including soft water and low lighting. They are known to be dedicated parents, with both the male and female guarding and caring for their eggs and fry.

In conclusion, Altum Angelfish are captivating additions to freshwater aquariums, admired for their majestic appearance and unique characteristics. Providing them with a well-maintained environment, suitable tankmates, and a varied diet contributes to the well-being of these elegant fish, allowing enthusiasts to enjoy their beauty and grace in a home aquarium setting.

Stock Altum Angelfish in Your Tank

Use our free stocking calculator to see if Altum Angelfish fits your aquarium