Description
Serpae Tetra (Hyphessobrycon eques)
📌 Basic Info
Scientific Name: Hyphessobrycon eques
Common Name: Serpae Tetra / Jewel Tetra / Callistus Tetra
Size: ~1.75 inches (4.5 cm)
Lifespan: 5 – 7 years
Tank Zone: Middle swimmers
🌊 Water Parameters
TDS: 100 – 250 ppm
pH: 5.5 – 7.0
Temperature: 22°C – 28°C (72°F – 82°F)
Water Type: Soft, slightly acidic
🐟 Characteristics
Bright red/orange body with a distinct black shoulder spot
Active, hardy, and colorful
Can be semi-aggressive → known to nip fins if kept in small groups
🍽️ Food
Type: Omnivorous
Diet: Flakes, granules, frozen/live foods (brine shrimp, daphnia, worms)
Feeding Frequency: 1–2 times daily
🛠️ Maintenance
Weekly water change: 25–30%
Needs at least a medium tank (20+ gallons)
Provide plants + open swimming areas
👥 Social Behavior
Minimum Group Size: 8 (better in 10–12)
Tank Mates: Larger tetras, barbs, corydoras
Avoid: Slow-moving or long-finned fish (angels, guppies, bettas)
✅ Do’s
Keep in larger shoals → reduces aggression
Mix with active, fast-moving tank mates
Use plants and décor to reduce stress
❌ Don’ts
Don’t keep in small groups → they become nippy
Don’t mix with slow or delicate fish
Don’t overcrowd → may cause aggression
⭐ Quick Tips
A fiery red tetra with lots of energy. Keep in large groups to spread out aggression and enjoy their active schooling display.
