Altum Angelfish

Pterophyllum altum

AngelfishAdvanced
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Species Details

Altum Angelfish are the largest and most magnificent angelfish species, native to the Orinoco River basin. They are more challenging to keep than common angelfish and require pristine water conditions and expert care.

Advanced Care Level

Basic Information

Size18+ cm (7+ inches) tall, 15 cm (6 inches) long
TemperamentPeaceful
DietOmnivorous
Lifespan10-15 years
Tank Size300+ litres (80+ gallons)

Water Parameters

Temperature
26-30°C (79-86°F)
pH Level
4.5-6.5
Hardness
1-8 dGH

Tank Mate Recommendations

Based on 1 selected species

Current Selection:

Altum Angelfish
Fully Compatible Species
Compatible

Angelfish

Pterophyllum scalare

Cichlids
Size:15 cm tall, 20 cm long (6 inches tall, 8 inches long)
Care Level:Beginner
Temperament:Peaceful/Semi-aggressive
100%
Compatible

Tanganyikan Cichlids

Various Lamprologus, Julidochromis, Neolamprologus

Cichlids
Size:5-20 cm (2-8 inches)
Care Level:Intermediate
Temperament:Semi-aggressive
100%
Compatible

Pleco Catfish

Various Hypostomus, Pterygoplichthys species

Catfish
Size:15-45 cm (6-18 inches)
Care Level:Intermediate
Temperament:Peaceful but territorial
100%
Compatible

Discus

Symphysodon species

Cichlids
Size:15-20 cm (6-8 inches)
Care Level:Advanced
Temperament:Peaceful/Semi-aggressive
100%
Compatible

Gouramis

Various Trichogaster, Colisa species

Anabantoids
Size:5-25 cm (2-10 inches)
Care Level:Beginner
Temperament:Peaceful/Semi-aggressive
100%
Compatible

Rainbowfish

Various Melanotaenia, Pseudomugil species

Rainbowfish
Size:7-15 cm (3-6 inches)
Care Level:Beginner
Temperament:Peaceful
100%

💡 Tank Mate Tips

• Consider adult size when planning tank space

• Research specific water parameter requirements

• Introduce new fish gradually to reduce stress

• Monitor behavior closely during the first weeks

Quick Facts

Largest and most impressive angelfish species

Wild-caught specimens preferred over tank-bred

Distinctive red spots on fins and body

Requires excellent water quality and stability

More challenging than common angelfish

Native to Orinoco River basin in Venezuela

Can reach 18+ cm in height

Sensitive to water parameter changes

Commands premium prices in the hobby

Considered the holy grail of angelfish

Compatibility Summary

Compatible Species6
Requires Caution6
View full compatibility analysis →

Care Requirements

Tank Size300+ litres (80+ gallons)
Temperature26-30°C (79-86°F)
pH4.5-6.5
Hardness1-8 dGH

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