🐟 Golden Wonder Killifish Aplocheilus lineatus


The Golden Wonder Killifish (Aplocheilus lineatus) is a easy-care, semi-aggressive species from India and Sri Lanka. Adults reach roughly 4", so plan on a minimum tank of 20 gallons. Keep the water between 72–77°F with a pH of 6–7.5. It does not school and can be kept singly or in species-appropriate numbers. It is predatory and will eat fish small enough to fit in its mouth. As a carnivore, it does best on a varied diet appropriate to its feeding style.
At a glance
| Adult size | 4" |
|---|---|
| Minimum tank | 20 gallons |
| Temperature | 72–77°F |
| pH | 6–7.5 |
| Temperament | Semi-aggressive |
| Schooling | No |
| Diet | Carnivore |
| Care level | Easy |
| Origin | India and Sri Lanka |