Selene vomer

Datasheet

General Description

The Threadfin Lookdown, scientifically known as Selene vomer, belongs to the Carangidae family. These fish are characterized by their exceptionally reflective and shiny skin, making them a visually striking species. They are part of the larger Jacks/Pompanos category, which typically range from 10 to 40 inches in length, with some individuals even growing up to 6.5 feet. Threadfin Lookdowns are predatory in nature, often hunting for prey in open water or scavenging along the seabed, with a particular affinity for crustaceans.

Aquarium Suitability

Threadfin Lookdowns are considered suitable for aquariums, but they come with specific demands that need to be carefully met. They are peaceful in temperament but can pose a threat to smaller fish and crustaceans due to their predatory instincts. These fish demand a large aquarium, especially when fully grown, making them challenging to house in a typical home aquarium setting. It is essential to provide ample space to accommodate their active swimming behavior.

Care and Hardiness

Known for their hardiness, Threadfin Lookdowns can thrive given the right conditions. They require frequent feeding, especially when first introduced to a new environment. Ensuring a varied diet is crucial for their well-being, and they must be fed multiple times a day. Additionally, maintaining water parameters within the recommended range, including a pH of 8.1-8.4, a temperature between 22.2-25.6°C, and a specific gravity of 1.020-1.025, is vital for their health.

Reef Suitability

Threadfin Lookdowns are deemed reef-safe with caution. While they can coexist in a reef environment, their predatory nature might make them a potential threat to smaller crustaceans and invertebrates within the reef ecosystem.

Aquarium Setup

When setting up an aquarium for Threadfin Lookdowns, it is crucial to provide ample space for swimming. Keeping them in groups of at least three individuals is recommended to promote their well-being. The tank should be equipped with suitable hiding spots and structures to mimic their natural habitat, allowing them to exhibit their natural behaviors comfortably.

Behaviour

Threadfin Lookdowns are known to be peaceful in temperament but can exhibit predatory behavior towards smaller tank mates. They are active swimmers that require room to roam, making a spacious aquarium a necessity for their mental and physical health.

Feeding and Diet

These fish have a voracious appetite and must be fed a varied diet to meet their nutritional requirements. Their diet may consist of fish, larger crustaceans like shrimp and crabs, and other invertebrates present in the aquarium. Providing regular and diverse meals is essential for their long-term health and vitality.

Habitat and Distribution

Threadfin Lookdowns are primarily found in the West Atlantic region, where they inhabit coastal waters along the seabed. Their natural habitat includes areas with abundant crustaceans, which serve as a significant food source for these predatory fish. In aquarium environments, replicating their natural habitat through appropriate tank setup and diet is crucial for their overall well-being.