| Basin : | Around Cayenne; introduced in French Guiana |
| Max size : | 4 cm |
| PH : | 6 |
| Food : | any kind of fish food |
| Misc. : | Not a native fish |
| Basin : | Everywhere, coastal areas |
| Max size : | 10 cm |
| PH : | 7 |
| Food : | Anything edible |
| Misc. : | A big, voracious tetra |
| Basin : | Everywhere, except Mana |
| Max size : | 4 cm |
| PH : | 6 |
| Food : | Omnivorous ; likes ants |
| Misc. : | A very common but beautiful tetra |
| Basin : | All basins |
| Max size : | 10 cm |
| PH : | 6-7 |
| Food : | Omnivorous |
| Misc. : | Very common fish found in small rivers inside the jungle |
| Basin : | All basins |
| Max size : | 4 cm |
| PH : | 6-7 |
| Food : | Omnivorous |
| Misc. : | Very common in French Guiana |
| Basin : | All basins |
| Max size : | 20 cm |
| PH : | 6-7 |
| Food : | Live fish exclusively |
| Misc. : | Very efficient with small fishes it predates on; quiet with others |
| Basin : | Mana |
| Max size : | 10 cm |
| PH : | 6-7 |
| Food : | Mosquito larvae, small bits |
| Misc. : | Very agressive with its own species |
| Basin : | Maroni |
| Max size : | 35 cm |
| PH : | 7-7.5 |
| Food : | Vegetables |
| Misc. : | Very quiet; lives in schools |