B
Black Ghost Knife Fish
Apteronotus albifrons
VS
R
Rainbow Shark
Epalzeorhynchos frenatum
Choosing between Black Ghost Knife Fish and Rainbow Shark? 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
Rainbow Shark
Epalzeorhynchos frenatumCommon Name
Black Ghost Knife Fish
Rainbow Shark
Scientific Name
Apteronotus albifrons
Epalzeorhynchos frenatum
Type
Freshwater
Freshwater
Difficulty
Advanced
Beginner Friendly
Temperament
Semi-Aggressive
Semi-Aggressive
Minimum Tank
75 gallons
30 gallons
Recommended Tank
100 gallons
55 gallons
Temperature
73°F - 80°F
72°F - 79°F
pH Range
6 - 8
6.5 - 7.5
Max Size
20 inches
6 inches
Lifespan
10-15 years
5-8 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Algae wafers, Pellets, Vegetables, Flakes
Black Ghost Knife Fish
✓ Good For
Rainbow Shark
✓ Good For
- Community tanks
- Beginners
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