B
Betta Fish
Betta splendens
VS
M
Molly
Poecilia sphenops
Choosing between Betta Fish and Molly? 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.
Betta Fish
Betta splendensVS
Molly
Poecilia sphenopsCommon Name
Betta Fish
Molly
Scientific Name
Betta splendens
Poecilia sphenops
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Beginner Friendly
Temperament
Aggressive
Peaceful
Minimum Tank
5 gallons
20 gallons
Recommended Tank
10 gallons
30 gallons
Temperature
76°F - 82°F
75°F - 82°F
pH Range
6.5 - 7.5
7.5 - 8.5
Max Size
3 inches
4.5 inches
Lifespan
2-5 years
3-5 years
Diet
Pellets, Flakes, Freeze-dried foods, Live foods (occasionally)
High-quality vegetable-based flake food, Algae wafers, Spirulina, Blanched vegetables, Frozen daphnia, Bloodworms
Betta Fish
✓ Good For
- Beginners
- Small tanks
Molly
✓ Good For
- Community tanks
- Beginners
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