R
Red Tail Shark
Epalzeorhynchos bicolor
VS
T
Threadfin Rainbowfish
Iriatherina werneri
Choosing between Red Tail Shark and Threadfin Rainbowfish? 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.
Red Tail Shark
Epalzeorhynchos bicolorVS
Threadfin Rainbowfish
Iriatherina werneriCommon Name
Red Tail Shark
Threadfin Rainbowfish
Scientific Name
Epalzeorhynchos bicolor
Iriatherina werneri
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Intermediate
Temperament
Semi-Aggressive
Peaceful
Minimum Tank
30 gallons
10 gallons
Recommended Tank
55 gallons
20 gallons
Temperature
72°F - 79°F
75°F - 82°F
pH Range
6.5 - 7.5
6 - 7.5
Max Size
6 inches
2 inches
Lifespan
5-8 years
3-5 years
Diet
Algae wafers, Pellets, Vegetables, Flakes
Small pellets, Frozen foods, Brine shrimp, Daphnia
Red Tail Shark
✓ Good For
- Community tanks
- Beginners
Threadfin Rainbowfish
✓ Good For
- Community tanks
- Small tanks
- Schooling displays
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