B
Black Ghost Knife Fish
Apteronotus albifrons
VS
R
Rope Fish
Erpetoichthys calabaricus
Choosing between Black Ghost Knife Fish and Rope 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.
Black Ghost Knife Fish
Apteronotus albifronsVS
Rope Fish
Erpetoichthys calabaricusCommon Name
Black Ghost Knife Fish
Rope Fish
Scientific Name
Apteronotus albifrons
Erpetoichthys calabaricus
Type
Freshwater
Freshwater
Difficulty
Advanced
Intermediate
Temperament
Semi-Aggressive
Semi-Aggressive
Minimum Tank
75 gallons
55 gallons
Recommended Tank
100 gallons
75 gallons
Temperature
73°F - 80°F
72°F - 82°F
pH Range
6 - 8
6.5 - 7.5
Max Size
20 inches
16 inches
Lifespan
10-15 years
15-20 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Live or frozen fish, Bloodworms, Shrimp, Pellets
Black Ghost Knife Fish
✓ Good For
Rope Fish
✓ Good For
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