B
Black Ghost Knife Fish
Apteronotus albifrons
VS
B
Blue Tang
Paracanthurus hepatus
Choosing between Black Ghost Knife Fish and Blue Tang? 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
Blue Tang
Paracanthurus hepatusCommon Name
Black Ghost Knife Fish
Blue Tang
Scientific Name
Apteronotus albifrons
Paracanthurus hepatus
Type
Freshwater
Saltwater / Marine
Difficulty
Advanced
Advanced
Temperament
Semi-Aggressive
Semi-Aggressive
Minimum Tank
75 gallons
125 gallons
Recommended Tank
100 gallons
180 gallons
Temperature
73°F - 80°F
72°F - 78°F
pH Range
6 - 8
8.1 - 8.4
Max Size
20 inches
12 inches
Lifespan
10-15 years
8-12 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Marine algae, Nori, Marine pellets, Frozen foods, Spirulina
Black Ghost Knife Fish
✓ Good For
Blue Tang
✓ Good For
- Community tanks
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