B
Betta Fish
Betta splendens
VS
T
Turquoise Rainbowfish
Melanotaenia lacustris
Choosing between Betta Fish and Turquoise Rainbowfish? 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
Turquoise Rainbowfish
Melanotaenia lacustrisCommon Name
Betta Fish
Turquoise Rainbowfish
Scientific Name
Betta splendens
Melanotaenia lacustris
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Aggressive
Peaceful
Minimum Tank
5 gallons
40 gallons
Recommended Tank
10 gallons
55 gallons
Temperature
76°F - 82°F
72°F - 79°F
pH Range
6.5 - 7.5
7 - 8
Max Size
3 inches
4 inches
Lifespan
2-5 years
5-8 years
Diet
Pellets, Flakes, Freeze-dried foods, Live foods (occasionally)
High-quality flake food, Small pellets, Frozen foods, Vegetable matter
Betta Fish
✓ Good For
- Beginners
- Small tanks
Turquoise Rainbowfish
✓ Good For
- Community tanks
- Schooling displays
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