O
Oscar
Astronotus ocellatus
VS
R
Redtail Catfish
Phractocephalus hemioliopterus
Choosing between Oscar and Redtail 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
Redtail Catfish
Phractocephalus hemioliopterusCommon Name
Oscar
Redtail Catfish
Scientific Name
Astronotus ocellatus
Phractocephalus hemioliopterus
Type
Freshwater
Freshwater
Difficulty
Intermediate
Advanced
Temperament
Aggressive
Aggressive
Minimum Tank
75 gallons
300 gallons
Recommended Tank
125 gallons
1000 gallons
Temperature
74°F - 81°F
72°F - 79°F
pH Range
6.5 - 7.5
6 - 7.5
Max Size
14 inches
48 inches
Lifespan
10-20 years
15-20 years
Diet
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Fish, Shrimp, Worms, Pellets, Chicken, Beef
Oscar
✓ Good For
Redtail Catfish
✓ Good For
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