S
Swordtail
Xiphophorus hellerii
VS
Y
Yellow Watchman Goby
Cryptocentrus cinctus
Choosing between Swordtail and Yellow Watchman Goby? 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
Yellow Watchman Goby
Cryptocentrus cinctusCommon Name
Swordtail
Yellow Watchman Goby
Scientific Name
Xiphophorus hellerii
Cryptocentrus cinctus
Type
Freshwater
Saltwater / Marine
Difficulty
Beginner Friendly
Intermediate
Temperament
Peaceful
Peaceful
Minimum Tank
15 gallons
10 gallons
Recommended Tank
29 gallons
20 gallons
Temperature
72°F - 82°F
72°F - 78°F
pH Range
7 - 8.4
8.1 - 8.4
Max Size
5.5 inches
3 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
Yellow Watchman Goby
✓ Good For
- Community tanks
- Small tanks
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