B
Black Ghost Knife Fish
Apteronotus albifrons
VS
Y
Yellow Watchman Goby
Cryptocentrus cinctus
Choosing between Black Ghost Knife Fish and Yellow Watchman Goby? 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
Yellow Watchman Goby
Cryptocentrus cinctusCommon Name
Black Ghost Knife Fish
Yellow Watchman Goby
Scientific Name
Apteronotus albifrons
Cryptocentrus cinctus
Type
Freshwater
Saltwater / Marine
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 - 78°F
pH Range
6 - 8
8.1 - 8.4
Max Size
20 inches
3 inches
Lifespan
10-15 years
3-5 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
Black Ghost Knife Fish
✓ Good For
Yellow Watchman Goby
✓ Good For
- Community tanks
- Small tanks
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