C
Costello Tetra
Hemigrammus hyanuary
VS
P
Purple Firefish
Nemateleotris decora
Choosing between Costello Tetra and Purple 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
Purple Firefish
Nemateleotris decoraCommon Name
Costello Tetra
Purple Firefish
Scientific Name
Hemigrammus hyanuary
Nemateleotris decora
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
3 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
Purple Firefish
✓ Good For
- Community tanks
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