B
Black Ghost Knife Fish
Apteronotus albifrons
VS
C
Cardinal Tetra
Paracheirodon axelrodi
Choosing between Black Ghost Knife Fish and Cardinal Tetra? 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.
Black Ghost Knife Fish
Apteronotus albifronsVS
Cardinal Tetra
Paracheirodon axelrodiCommon Name
Black Ghost Knife Fish
Cardinal Tetra
Scientific Name
Apteronotus albifrons
Paracheirodon axelrodi
Type
Freshwater
Freshwater
Difficulty
Advanced
Beginner Friendly
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
75 gallons
20 gallons
Recommended Tank
100 gallons
30 gallons
Temperature
73°F - 80°F
73°F - 81°F
pH Range
6 - 8
5.5 - 7
Max Size
20 inches
2 inches
Lifespan
10-15 years
3-5 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
High-quality flake food, Micro pellets, Frozen or live brine shrimp, Daphnia
Black Ghost Knife Fish
✓ Good For
Cardinal Tetra
✓ Good For
- Community tanks
- Beginners
- Schooling displays
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