Threestripe pencilfish (Nannostomus trifasciatus)

General data
- Main name: Threestripe pencilfish
- Habitat: Freshwater
Classification
- Genus: Nannostomus - Nannostomus
- Family: Lebiasinidae - Pencilfishes
- Order: Characiformes - Characins
- Class: Teleostei - Ray-finned fishes
- Superclass: Osteichthyes - Bony fishes