Red Tail Penguin Tetra (Thayeria boehlkei) The Red Tail Penguin Tetra is a peaceful, mid-sized freshwater fish native to South America, recognized for its slender silver body, striking black lateral stripe, and vivid red tail. Active and schooling, it thrives in groups, adding elegant movement and color to community aquariums.
Quick Facts:
Origin: South America (Amazon Basin, Brazil, Peru)
Family: Characidae
Adult Size: Up to 6 cm
Lifespan: 3–5 years
Temperament: Peaceful, active, schooling
School Size: Keep in groups of 6 or more
Tank Level: Mid-level
Diet: Omnivore – high-quality flakes, micro-pellets, live or frozen foods
Water Temperature: 24–28 °C
pH Range: 6.0–7.5
Water Hardness: Soft to moderately hard
Tank Setup: Plants, open swimming areas, gentle filtration
Compatibility: Excellent for peaceful community tanks
