H
Helfrichi Firefish
Nemateleotris helfrichi
VS
S
Swordtail
Xiphophorus hellerii
Choosing between Helfrichi Firefish and Swordtail? 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.
Helfrichi Firefish
Nemateleotris helfrichiVS
Swordtail
Xiphophorus helleriiCommon Name
Helfrichi Firefish
Swordtail
Scientific Name
Nemateleotris helfrichi
Xiphophorus hellerii
Type
Saltwater / Marine
Freshwater
Difficulty
Intermediate
Beginner Friendly
Temperament
Peaceful
Peaceful
Minimum Tank
20 gallons
15 gallons
Recommended Tank
30 gallons
29 gallons
Temperature
72°F - 78°F
72°F - 82°F
pH Range
8.1 - 8.4
7 - 8.4
Max Size
2.5 inches
5.5 inches
Lifespan
3-5 years
3-5 years
Diet
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
High-quality flake food, Algae-based foods, Vegetable matter, Frozen bloodworms, Brine shrimp, Daphnia
Helfrichi Firefish
✓ Good For
- Community tanks
Swordtail
✓ Good For
- Community tanks
- Beginners
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