O
Oscar
Astronotus ocellatus
VS
R
Royal Gramma
Gramma loreto
Choosing between Oscar 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.
Oscar
Astronotus ocellatusVS
Royal Gramma
Gramma loretoCommon Name
Oscar
Royal Gramma
Scientific Name
Astronotus ocellatus
Gramma loreto
Type
Freshwater
Saltwater / Marine
Difficulty
Intermediate
Intermediate
Temperament
Aggressive
Peaceful
Minimum Tank
75 gallons
30 gallons
Recommended Tank
125 gallons
40 gallons
Temperature
74°F - 81°F
72°F - 78°F
pH Range
6.5 - 7.5
8.1 - 8.4
Max Size
14 inches
3.5 inches
Lifespan
10-20 years
5-6 years
Diet
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Marine flakes, Copepods
Oscar
✓ Good For
Royal Gramma
✓ Good For
- Community tanks
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