P
Pajama Cardinalfish
Sphaeramia nematoptera
VS
X
X-Ray Tetra
Pristella maxillaris
Choosing between Pajama Cardinalfish and X-Ray Tetra? 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.
Pajama Cardinalfish
Sphaeramia nematopteraVS
X-Ray Tetra
Pristella maxillarisCommon Name
Pajama Cardinalfish
X-Ray Tetra
Scientific Name
Sphaeramia nematoptera
Pristella maxillaris
Type
Saltwater / Marine
Freshwater
Difficulty
Beginner Friendly
Beginner Friendly
Temperament
Peaceful
Peaceful
Minimum Tank
20 gallons
10 gallons
Recommended Tank
30 gallons
20 gallons
Temperature
72°F - 78°F
64°F - 82°F
pH Range
8.1 - 8.4
6 - 8
Max Size
3 inches
2 inches
Lifespan
5-8 years
4-6 years
Diet
Marine pellets, Frozen Mysis shrimp, Frozen brine shrimp, Marine flakes
Flakes, Pellets, Frozen foods
Pajama Cardinalfish
✓ Good For
- Community tanks
- Beginners
- Schooling displays
X-Ray Tetra
✓ Good For
- Community tanks
- Beginners
- Small tanks
- Schooling displays
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