B
Black Ghost Knife Fish
Apteronotus albifrons
VS
O
Otocinclus
Otocinclus affinis
Choosing between Black Ghost Knife Fish and Otocinclus? 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
Otocinclus
Otocinclus affinisCommon Name
Black Ghost Knife Fish
Otocinclus
Scientific Name
Apteronotus albifrons
Otocinclus affinis
Type
Freshwater
Freshwater
Difficulty
Advanced
Intermediate
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
75 gallons
10 gallons
Recommended Tank
100 gallons
20 gallons
Temperature
73°F - 80°F
72°F - 79°F
pH Range
6 - 8
6 - 7.5
Max Size
20 inches
2 inches
Lifespan
10-15 years
3-5 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Algae and biofilm, Algae wafers, Blanched vegetables, Zucchini, Cucumber, Spinach
Black Ghost Knife Fish
✓ Good For
Otocinclus
✓ Good For
- Community tanks
- Small tanks
- Schooling displays
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