Killifish are a hardy, mostly freshwater, egg-laying family of fish that can be found across the Americas, southern Europe, African, and even the Middle East and Asia. They are one of the most vibrantly colored and beautifully patterned freshwater fish. For this reason, killifish enthusiasts are one of the largest groups of fish-keeping enthusiasts around.
| Scientific Name | Common Name | Size | Temperament |
| Fundulopanchax gardneri | Gardneri killifish | 50mm | Peaceful |
| Water Temp | Water pH | Tank Size | Diet |
| 16–21 °C | 6.0 - 7.5 | 40 liters | Carnivorous |
| Lifespan | Care | Breeding ease | Max Population |
| 2 years | Easy | Easy | 1 Pair |
| Robustness | Way of Living | Sociability | Availability |
| Hardy | Diurnal | Community | Difficult |