Common name: Threadnose Anthias

General Information

The Threadnose Anthias, scientifically known as Choranthias tenuis, is a stunning and rare species of anthias that captivates aquarists with its vibrant coloration and delicate features. Its slender body is adorned with a striking combination of yellow, pink, and magenta hues, making it a prized addition to any reef aquarium. The species is native to the deep reefs of the Western Atlantic, ranging from the Bahamas to Brazil, where it inhabits depths of 50 to 200 meters.

This species is not commonly seen in the aquarium trade due to its deep-water habitat, which makes collection challenging. However, its rarity and beauty make it a sought-after species for advanced hobbyists and public aquariums. The Threadnose Anthias is best suited for dedicated aquarists who can meet its specific care requirements.

Care

Caring for the Threadnose Anthias requires attention to detail and a well-established aquarium. This species thrives in tanks with plenty of live rock for hiding and perching, as it is naturally shy and reclusive. Dim lighting or areas of shade are recommended to mimic its deep-water habitat and reduce stress. A peaceful tank environment is crucial, as this species does not tolerate aggressive tank mates.

Due to its deep-water origins, the Threadnose Anthias prefers cooler water temperatures compared to many other reef fish. Maintaining stable water parameters and high water quality is essential for its health and longevity.

Diet and Feeding

In the wild, the Threadnose Anthias is a planktivore, feeding on zooplankton and other small suspended particles. In captivity, it should be offered a varied diet of high-quality frozen foods such as mysis shrimp, enriched brine shrimp, and finely chopped seafood. It may also accept small pellets or flakes designed for carnivorous marine fish.

Frequent, small feedings are recommended to replicate its natural feeding habits and ensure proper nutrition. Observing its feeding behavior is important, as this species can be slow to acclimate to captive diets.

Behavior and Compatibility

The Threadnose Anthias is a peaceful and shy species, making it an excellent candidate for a tranquil reef tank. It is best kept singly or in a small group, provided the tank is large enough to accommodate multiple individuals without territorial disputes. This species is generally reef-safe and will not harm corals or invertebrates.

When housed with other fish, choose non-aggressive species that will not outcompete the Threadnose Anthias for food. Avoid housing it with large or boisterous fish that may intimidate or stress it.

Health and Common Issues

The Threadnose Anthias is a delicate species that requires careful acclimation and ongoing care to thrive in captivity. It is susceptible to stress-related illnesses, particularly if housed in an unsuitable environment or with aggressive tank mates. Maintaining pristine water quality and a stable environment is key to preventing health issues.

When selecting a Threadnose Anthias, look for individuals that are alert and actively swimming. Avoid specimens that appear lethargic, have damaged fins, or show signs of disease. Quarantining new arrivals is highly recommended to ensure their health before introducing them to the main tank.

Habitat

In its natural habitat, the Threadnose Anthias is found in deep reefs and rocky outcrops, where it seeks shelter among crevices and overhangs. These environments are characterized by low light levels and cooler water temperatures, which should be replicated in captivity to ensure the species' comfort and well-being.