B
Black Ghost Knife Fish
Apteronotus albifrons
VS
B
Betta Fish
Betta splendens
Choosing between Black Ghost Knife Fish and Betta 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
Betta Fish
Betta splendensCommon Name
Black Ghost Knife Fish
Betta Fish
Scientific Name
Apteronotus albifrons
Betta splendens
Type
Freshwater
Freshwater
Difficulty
Advanced
Beginner Friendly
Temperament
Semi-Aggressive
Aggressive
Minimum Tank
75 gallons
5 gallons
Recommended Tank
100 gallons
10 gallons
Temperature
73°F - 80°F
76°F - 82°F
pH Range
6 - 8
6.5 - 7.5
Max Size
20 inches
3 inches
Lifespan
10-15 years
2-5 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Pellets, Flakes, Freeze-dried foods, Live foods (occasionally)
Black Ghost Knife Fish
✓ Good For
Betta Fish
✓ Good For
- Beginners
- Small tanks
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