A
Angelfish
Pterophyllum scalare
VS
B
Black Ghost Knife Fish
Apteronotus albifrons
Choosing between Angelfish and Black Ghost Knife Fish? Both are excellent choices, but they have different care requirements and temperaments. Use the detailed comparison below to make an informed decision based on your experience level, tank size, and community goals.
Angelfish
Pterophyllum scalareVS
Black Ghost Knife Fish
Apteronotus albifronsCommon Name
Angelfish
Black Ghost Knife Fish
Scientific Name
Pterophyllum scalare
Apteronotus albifrons
Type
Freshwater
Freshwater
Difficulty
Intermediate
Advanced
Temperament
Semi-Aggressive
Semi-Aggressive
Minimum Tank
30 gallons
75 gallons
Recommended Tank
55 gallons
100 gallons
Temperature
76°F - 84°F
73°F - 80°F
pH Range
6.5 - 7.5
6 - 8
Max Size
8 inches
20 inches
Lifespan
8-12 years
10-15 years
Diet
Cichlid pellets, Flakes, Frozen foods, Live foods, Vegetables
Live or frozen bloodworms, Krill, Pellets, Small fish
Angelfish
✓ Good For
- Community tanks
Black Ghost Knife Fish
✓ Good For
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