B
Black Ghost Knife Fish
Apteronotus albifrons
VS
R
Royal Gramma
Gramma loreto
Choosing between Black Ghost Knife Fish and Royal Gramma? 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
Royal Gramma
Gramma loretoCommon Name
Black Ghost Knife Fish
Royal Gramma
Scientific Name
Apteronotus albifrons
Gramma loreto
Type
Freshwater
Saltwater / Marine
Difficulty
Advanced
Intermediate
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
75 gallons
30 gallons
Recommended Tank
100 gallons
40 gallons
Temperature
73°F - 80°F
72°F - 78°F
pH Range
6 - 8
8.1 - 8.4
Max Size
20 inches
3.5 inches
Lifespan
10-15 years
5-6 years
Diet
Live or frozen bloodworms, Krill, Pellets, Small fish
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Marine flakes, Copepods
Black Ghost Knife Fish
✓ Good For
Royal Gramma
✓ Good For
- Community tanks
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