S
Swordtail
Xiphophorus hellerii
VS
Z
Zebra Dartfish
Ptereleotris zebra
Choosing between Swordtail and Zebra Dartfish? 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.
Swordtail
Xiphophorus helleriiVS
Zebra Dartfish
Ptereleotris zebraCommon Name
Swordtail
Zebra Dartfish
Scientific Name
Xiphophorus hellerii
Ptereleotris zebra
Type
Freshwater
Saltwater / Marine
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Peaceful
Minimum Tank
15 gallons
30 gallons
Recommended Tank
29 gallons
40 gallons
Temperature
72°F - 82°F
72°F - 78°F
pH Range
7 - 8.4
8.1 - 8.4
Max Size
5.5 inches
4 inches
Lifespan
3-5 years
3-5 years
Diet
High-quality flake food, Algae-based foods, Vegetable matter, Frozen bloodworms, Brine shrimp, Daphnia
Frozen Mysis shrimp, Frozen brine shrimp, Marine pellets, Copepods
Swordtail
✓ Good For
- Community tanks
- Beginners
Zebra Dartfish
✓ Good For
- Community tanks
- Schooling displays
Explore More
Similar Comparisons
Discover other popular fish pairings to find your perfect aquarium match.