C
Cardinal Tetra
Paracheirodon axelrodi
VS
H
Helfrichi Firefish
Nemateleotris helfrichi
Choosing between Cardinal Tetra and Helfrichi Firefish? 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.
Cardinal Tetra
Paracheirodon axelrodiVS
Helfrichi Firefish
Nemateleotris helfrichiCommon Name
Cardinal Tetra
Helfrichi Firefish
Scientific Name
Paracheirodon axelrodi
Nemateleotris helfrichi
Type
Freshwater
Saltwater / Marine
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Peaceful
Minimum Tank
20 gallons
20 gallons
Recommended Tank
30 gallons
30 gallons
Temperature
73°F - 81°F
72°F - 78°F
pH Range
5.5 - 7
8.1 - 8.4
Max Size
2 inches
2.5 inches
Lifespan
3-5 years
3-5 years
Diet
High-quality flake food, Micro pellets, Frozen or live brine shrimp, Daphnia
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
Cardinal Tetra
✓ Good For
- Community tanks
- Beginners
- Schooling displays
Helfrichi Firefish
✓ Good For
- Community tanks
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