| Petitella | |
|---|---|
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| |
| Petitella bleheri | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Characiformes |
| Family: | Characidae |
| Subfamily: | Pristellinae |
| Genus: | Petitella Géry & Boutière, 1964 |
| Type species | |
| Petitella georgiae Géry & Boutière, 1964
| |
Petitella is a genus of freshwater fish in the family Characidae of the order Characiformes.
They are all popular tropical fish in the aquarium hobby. They are commonly known as Rummy-nose tetras.