C
Costello Tetra
Hemigrammus hyanuary
VS
O
Oscar
Astronotus ocellatus
Choosing between Costello Tetra 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.
Costello Tetra
Hemigrammus hyanuaryVS
Oscar
Astronotus ocellatusCommon Name
Costello Tetra
Oscar
Scientific Name
Hemigrammus hyanuary
Astronotus ocellatus
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Aggressive
Minimum Tank
10 gallons
75 gallons
Recommended Tank
20 gallons
125 gallons
Temperature
72°F - 79°F
74°F - 81°F
pH Range
5.5 - 7
6.5 - 7.5
Max Size
2 inches
14 inches
Lifespan
3-5 years
10-20 years
Diet
High-quality flake food, Micro pellets, Brine shrimp, Daphnia
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Costello Tetra
✓ Good For
- Community tanks
- Beginners
- Small tanks
- Schooling displays
Oscar
✓ Good For
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