B
Betta Fish
Betta splendens
VS
O
Oscar
Astronotus ocellatus
Choosing between Betta Fish and Oscar? 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.
Betta Fish
Betta splendensVS
Oscar
Astronotus ocellatusCommon Name
Betta Fish
Oscar
Scientific Name
Betta splendens
Astronotus ocellatus
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Aggressive
Aggressive
Minimum Tank
5 gallons
75 gallons
Recommended Tank
10 gallons
125 gallons
Temperature
76°F - 82°F
74°F - 81°F
pH Range
6.5 - 7.5
6.5 - 7.5
Max Size
3 inches
14 inches
Lifespan
2-5 years
10-20 years
Diet
Pellets, Flakes, Freeze-dried foods, Live foods (occasionally)
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Betta Fish
✓ Good For
- Beginners
- Small tanks
Oscar
✓ Good For
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