M
Molly
Poecilia sphenops
VS
O
Oscar
Astronotus ocellatus
Choosing between Molly 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.
Molly
Poecilia sphenopsVS
Oscar
Astronotus ocellatusCommon Name
Molly
Oscar
Scientific Name
Poecilia sphenops
Astronotus ocellatus
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Aggressive
Minimum Tank
20 gallons
75 gallons
Recommended Tank
30 gallons
125 gallons
Temperature
75°F - 82°F
74°F - 81°F
pH Range
7.5 - 8.5
6.5 - 7.5
Max Size
4.5 inches
14 inches
Lifespan
3-5 years
10-20 years
Diet
High-quality vegetable-based flake food, Algae wafers, Spirulina, Blanched vegetables, Frozen daphnia, Bloodworms
Cichlid pellets, Live foods, Frozen foods, Vegetables, Shrimp
Molly
✓ Good For
- Community tanks
- Beginners
Oscar
✓ Good For
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