C
Costello Tetra
Hemigrammus hyanuary
VS
H
Helfrichi Firefish
Nemateleotris helfrichi
Choosing between Costello 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.
Costello Tetra
Hemigrammus hyanuaryVS
Helfrichi Firefish
Nemateleotris helfrichiCommon Name
Costello Tetra
Helfrichi Firefish
Scientific Name
Hemigrammus hyanuary
Nemateleotris helfrichi
Type
Freshwater
Saltwater / Marine
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Peaceful
Minimum Tank
10 gallons
20 gallons
Recommended Tank
20 gallons
30 gallons
Temperature
72°F - 79°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, Brine shrimp, Daphnia
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
Costello Tetra
✓ Good For
- Community tanks
- Beginners
- Small tanks
- Schooling displays
Helfrichi Firefish
✓ Good For
- Community tanks
Explore More
Similar Comparisons
Discover other popular fish pairings to find your perfect aquarium match.