B
Black Ghost Knife Fish
Apteronotus albifrons
VS
S
Siamese Algae Eater
Crossocheilus oblongus
Choosing between Black Ghost Knife Fish and Siamese Algae Eater? 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
Siamese Algae Eater
Crossocheilus oblongusCommon Name
Black Ghost Knife Fish
Siamese Algae Eater
Scientific Name
Apteronotus albifrons
Crossocheilus oblongus
Type
Freshwater
Freshwater
Difficulty
Advanced
Beginner Friendly
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
75 gallons
30 gallons
Recommended Tank
100 gallons
55 gallons
Temperature
73°F - 80°F
75°F - 79°F
pH Range
6 - 8
6.5 - 7.5
Max Size
20 inches
6 inches
Lifespan
10-15 years
10-12 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Algae, Algae wafers, Vegetables, Flakes, Frozen foods
Black Ghost Knife Fish
✓ Good For
Siamese Algae Eater
✓ Good For
- Community tanks
- Beginners
- Schooling displays
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