B
Black Ghost Knife Fish
Apteronotus albifrons
VS
L
Lawnmower Blenny
Salarias fasciatus
Choosing between Black Ghost Knife Fish and Lawnmower Blenny? 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
Lawnmower Blenny
Salarias fasciatusCommon Name
Black Ghost Knife Fish
Lawnmower Blenny
Scientific Name
Apteronotus albifrons
Salarias fasciatus
Type
Freshwater
Saltwater / Marine
Difficulty
Advanced
Intermediate
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
75 gallons
30 gallons
Recommended Tank
100 gallons
55 gallons
Temperature
73°F - 80°F
75°F - 82°F
pH Range
6 - 8
8.1 - 8.4
Max Size
20 inches
6 inches
Lifespan
10-15 years
2-6 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Marine algae, Hair algae, Diatoms, Nori, Spirulina, Marine pellets
Black Ghost Knife Fish
✓ Good For
Lawnmower Blenny
✓ Good For
- Community tanks
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