G
Guppy
Poecilia reticulata
VS
O
Oscar
Astronotus ocellatus
Choosing between Guppy 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.
Guppy
Poecilia reticulataVS
Oscar
Astronotus ocellatusCommon Name
Guppy
Oscar
Scientific Name
Poecilia reticulata
Astronotus ocellatus
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Aggressive
Minimum Tank
5 gallons
75 gallons
Recommended Tank
10 gallons
125 gallons
Temperature
72°F - 82°F
74°F - 81°F
pH Range
6.8 - 7.8
6.5 - 7.5
Max Size
2.5 inches
14 inches
Lifespan
1-3 years
10-20 years
Diet
Flakes, Pellets, Frozen foods, Vegetables
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Guppy
✓ Good For
- Community tanks
- Beginners
- Small tanks
Oscar
✓ Good For
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