P
Penguin Tetra
Thayeria boehlkei
VS
T
Threadfin Rainbowfish
Iriatherina werneri
Choosing between Penguin Tetra and Threadfin 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.
Penguin Tetra
Thayeria boehlkeiVS
Threadfin Rainbowfish
Iriatherina werneriCommon Name
Penguin Tetra
Threadfin Rainbowfish
Scientific Name
Thayeria boehlkei
Iriatherina werneri
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Peaceful
Minimum Tank
15 gallons
10 gallons
Recommended Tank
20 gallons
20 gallons
Temperature
72°F - 82°F
75°F - 82°F
pH Range
6 - 7.5
6 - 7.5
Max Size
3 inches
2 inches
Lifespan
5-8 years
3-5 years
Diet
High-quality flake food, Small pellets, Bloodworms, Brine shrimp
Small pellets, Frozen foods, Brine shrimp, Daphnia
Penguin Tetra
✓ Good For
- Community tanks
- Beginners
- Small tanks
- Schooling displays
Threadfin Rainbowfish
✓ Good For
- Community tanks
- Small tanks
- Schooling displays
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