Common name: Live Sharksucker

General Information

The Live Sharksucker, scientifically known as Echeneis naucrates, is a fascinating species often recognized for its unique symbiotic relationship with larger marine animals. This species is part of the Echeneidae family, commonly referred to as remoras or suckerfish. They are named for their ability to attach themselves to larger hosts, such as sharks, turtles, and even ships, using a specialized suction disc located on the top of their heads. This disc is a modified dorsal fin that allows them to hitch a ride and feed on the leftovers from their host's meals.

Though not commonly found in home aquariums due to their specific lifestyle and dietary needs, Live Sharksuckers are of interest to marine enthusiasts and are occasionally seen in public aquariums. Their symbiotic nature and unique feeding habits make them a captivating subject for study and observation.

Care

Caring for a Live Sharksucker in captivity can be challenging due to their size and dietary requirements. They require a large tank with ample swimming space and stable, high-quality water conditions. Live Sharksuckers are best suited for experienced aquarists who can provide the necessary care and environment.

These fish are known for their ability to attach to larger marine creatures, so providing them with a host or a substitute such as a large artificial structure can help replicate their natural behavior. However, they can live without a host if they are fed appropriately.

Diet and Feeding

In the wild, Live Sharksuckers are opportunistic feeders, consuming scraps left by their hosts, as well as parasites and dead skin. In captivity, they should be offered a varied diet including high-quality marine-based foods such as shrimp, fish, and squid. Feeding should be done once or twice daily, with portions that can be consumed within a few minutes to prevent water quality issues.

Behavior and Compatibility

Live Sharksuckers are generally peaceful but can be semi-aggressive towards smaller fish, especially if they perceive them as potential hosts. They are best kept with large, non-aggressive tank mates that they cannot easily attach to or harm.

Their unique behavior of attaching to larger animals makes them unsuitable for reef tanks or tanks with small, delicate species. They require a robust setup with tank mates that can tolerate their presence.

Symbiosis

The Live Sharksucker's most notable trait is its symbiotic relationship with larger marine creatures. This relationship is primarily commensal, where the sharksucker benefits from transportation and food scraps without significantly harming the host. However, they may provide some cleaning benefits by removing parasites from their hosts.

Health and Common Issues

In captivity, Live Sharksuckers can live for several years if provided with proper care. They require stable water conditions and a diet that meets their nutritional needs. Regular monitoring for signs of stress or illness is crucial, as they can be susceptible to common marine ailments if water quality is poor.

Habitat

Live Sharksuckers are found in tropical and subtropical oceans worldwide, often in association with coral reefs and open ocean environments. They prefer warm waters and are frequently observed in the company of large marine animals.