B
Blue Tang
Paracanthurus hepatus
VS
P
Pajama Cardinalfish
Sphaeramia nematoptera
Choosing between Blue Tang and Pajama Cardinalfish? 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.
Blue Tang
Paracanthurus hepatusVS
Pajama Cardinalfish
Sphaeramia nematopteraCommon Name
Blue Tang
Pajama Cardinalfish
Scientific Name
Paracanthurus hepatus
Sphaeramia nematoptera
Type
Saltwater / Marine
Saltwater / Marine
Difficulty
Advanced
Beginner Friendly
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
125 gallons
20 gallons
Recommended Tank
180 gallons
30 gallons
Temperature
72°F - 78°F
72°F - 78°F
pH Range
8.1 - 8.4
8.1 - 8.4
Max Size
12 inches
3 inches
Lifespan
8-12 years
5-8 years
Diet
Marine algae, Nori, Marine pellets, Frozen foods, Spirulina
Marine pellets, Frozen Mysis shrimp, Frozen brine shrimp, Marine flakes
Blue Tang
✓ Good For
- Community tanks
Pajama Cardinalfish
✓ Good For
- Community tanks
- Beginners
- Schooling displays
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