Mastacembelus Erythrotaenia

Datasheet

General Description

The Fire Eel, scientifically known as Mastacembelus Erythrotaenia, is part of the Mastacembelidae family of spiny eels, commonly found in tropical Asia and Africa. These eels are distinguishable by the harmless spines running along their backs, with the Fire Eel specifically being a food source in its native regions.

Aquarium Setup

For an optimal aquarium setup for Fire Eels (see table), a well-planted tank with floating vegetation is recommended. Providing numerous hiding spots using bogwood, rock caves, and PVC piping is essential, as these eels are known to be reclusive during the day. Using sand as the substrate allows them to burrow, while dim lighting can encourage them to explore more. A secure hood is necessary due to their ability to squeeze through small openings, and a gentle water flow mimicking their natural still water habitats is preferable.

Behaviour

Fire Eels are typically peaceful when kept with appropriate tankmates, although they may prey on live fish if they are small enough. It is advisable to house only one Fire Eel per tank, as they can display aggression towards conspecifics. However, aggression can sometimes be mitigated by keeping them in groups of five or more individuals.

Feeding and Diet

As omnivores, Fire Eels in the wild consume various smaller fish, aquatic invertebrates, plant matter, and detritus. They have a preference for meaty foods like prawn, krill, and lancefish, accepting live and frozen options as well. While some individuals may also consume vegetable matter, this behavior is not common.

Reproduction & Dimorphism

While Fire Eels have been accidentally bred in aquarium settings, intentional breeding is rare. Female Fire Eels tend to appear fuller-bodied during breeding conditions, showcasing sexual dimorphism.

Habitat and Distribution

In their natural habitat, Fire Eels are commonly found in sluggish lowland waters, encompassing floodplains and slow-moving rivers. They have been recorded in countries such as Laos, Vietnam, Cambodia, Thailand, Malaysia, and Indonesia.