P
Pajama Cardinalfish
Sphaeramia nematoptera
VS
R
Rainbow Shark
Epalzeorhynchos frenatum
Choosing between Pajama Cardinalfish and Rainbow Shark? 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
Rainbow Shark
Epalzeorhynchos frenatumCommon Name
Pajama Cardinalfish
Rainbow Shark
Scientific Name
Sphaeramia nematoptera
Epalzeorhynchos frenatum
Type
Saltwater / Marine
Freshwater
Difficulty
Beginner Friendly
Beginner Friendly
Temperament
Peaceful
Semi-Aggressive
Minimum Tank
20 gallons
30 gallons
Recommended Tank
30 gallons
55 gallons
Temperature
72°F - 78°F
72°F - 79°F
pH Range
8.1 - 8.4
6.5 - 7.5
Max Size
3 inches
6 inches
Lifespan
5-8 years
5-8 years
Diet
Marine pellets, Frozen Mysis shrimp, Frozen brine shrimp, Marine flakes
Algae wafers, Pellets, Vegetables, Flakes
Pajama Cardinalfish
✓ Good For
- Community tanks
- Beginners
- Schooling displays
Rainbow Shark
✓ Good For
- Community tanks
- Beginners
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