Description
Hockeystick Tetra (Thayeria boehlkei)
📌 Basic Info
Scientific Name: Thayeria boehlkei
Common Name: Hockeystick Tetra / Penguin Tetra
Size: ~2.5 inches (6 cm)
Lifespan: 4 – 5 years
Tank Zone: Middle to upper swimmers
🌊 Water Parameters
TDS: 80 – 200 ppm
pH: 6.0 – 7.5
Temperature: 24°C – 28°C (75°F – 82°F)
Water Type: Soft, slightly acidic to neutral
🐟 Characteristics
Distinctive black stripe running from mid-body down to the tail in a “hockey stick” shape
Peaceful, active schooling fish
Hardy and community-friendly
🍽️ Food
Type: Omnivorous
Diet: Flakes, micro-pellets, frozen/live foods (brine shrimp, daphnia, bloodworms)
Feeding Frequency: 1–2 times daily
🛠️ Maintenance
Weekly water change: 25–30%
Needs open swimming areas
Prefers planted aquariums with subdued lighting
👥 Social Behavior
Minimum Group Size: 6 (better in 8–10+)
Tank Mates: Other peaceful fish – rasboras, small tetras, corydoras
Avoid: Aggressive/fin-nippers
✅ Do’s
Keep in groups to avoid stress
Provide long tanks with space for schooling
Combine with peaceful mid and bottom dwellers
❌ Don’ts
Don’t keep in small groups → they get shy
Don’t mix with very large fish
Don’t neglect water quality
⭐ Quick Tips
Active and unique-looking tetra, great centerpiece in a peaceful community tank.
