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Coral Red Pencilfish
Nannostomus mortenthaleri
Family: Lebiasinidae
📍 Rio Nanay, Peru
Arguably the most beautiful pencilfish — males blaze vivid red with iridescent blue and white accents. A staple of Amano-style planted tanks. Needs soft, acidic water and live food to colour up.
Keeping this species
- pH
- 5.5–7.0
- diet
- live/frozen micro prey
- maxSize
- 1.5 inches
- minTankSize
- 15 gallons
- temperature
- 75–82°F (24–28°C)
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Temperature
75–82°F
24–28°C
Natural Habitat Temperature
77°F — 81°F seasonal range · (Jul low, Feb high)