O
Oscar
Astronotus ocellatus
VS
U
Upside Down Catfish
Synodontis nigriventris
Choosing between Oscar and Upside Down Catfish? 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
Upside Down Catfish
Synodontis nigriventrisCommon Name
Oscar
Upside Down Catfish
Scientific Name
Astronotus ocellatus
Synodontis nigriventris
Type
Freshwater
Freshwater
Difficulty
Intermediate
Beginner Friendly
Temperament
Aggressive
Peaceful
Minimum Tank
75 gallons
20 gallons
Recommended Tank
125 gallons
30 gallons
Temperature
74°F - 81°F
72°F - 79°F
pH Range
6.5 - 7.5
6 - 7.5
Max Size
14 inches
4 inches
Lifespan
10-20 years
5-8 years
Diet
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Flakes, Pellets, Frozen foods, Algae wafers
Oscar
✓ Good For
Upside Down Catfish
✓ Good For
- Community tanks
- Beginners
- Schooling displays
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