Thalassoma newtoni

Datasheet

General Description

The Newton's Wrasse (Thalassoma newtoni) is a highly sought-after marine fish among aquarists, especially prized for the vibrant colors displayed by the males. Males of this species feature slim green bodies adorned with blue vertical stripes and intricate blue markings on their heads, reminiscent of flowing water. Additionally, they boast bright yellow bands near their gills. In contrast, juveniles exhibit lighter hues such as white, yellow, or brown, with a distinct black lateral stripe. Adult females typically have darker coloration than juveniles, with some showcasing black and white patterns.

Aquarium Suitability

The Newton's Wrasse is an easy-to-care-for species, suitable for aquariums. However, due to their aggressive temperament, caution is advised when introducing them to a tank with other fish, especially after they have established their territory. These wrasses thrive in environments with ample swimming space, a sandy substrate, and live rock formations that provide hiding spots and grazing areas for scavenging. While they generally leave corals undisturbed, it's best to avoid housing them with crustaceans. An aquarium equipped with a secure lid is recommended to prevent escape.

Care and Hardiness

With a maximum size of approximately 25.4 cm, Newton's Wrasses require a minimum tank size of 472 liters. They prefer water conditions with a pH range of 8.1-8.4, a specific gravity of 1.020-1.025, and a carbonate hardness (KH) of 8-12.

Reef Suitability

While the Newton's Wrasse is considered reef-compatible with caution, their semi-aggressive nature may pose a risk to certain tank mates and invertebrates. Careful monitoring is essential when housing them in a reef setup.

Aquarium Setup

To create an ideal habitat for the Newton's Wrasse, aquarists should provide ample swimming space, a sandy substrate, and live rock structures for hiding and grazing. Avoid keeping them with crustaceans and ensure the tank has a secure lid to prevent escapes.

Behaviour

These wrasses exhibit semi-aggressive behavior, especially towards tank mates introduced after they establish their territory. Monitoring their interactions with other fish is crucial to maintaining a harmonious aquarium environment.

Feeding and Diet

As carnivorous fish, Newton's Wrasses accept a variety of crustacean and meaty foods formulated for marine species. Offering a balanced diet will help ensure their health and vitality.

Habitat and Distribution

The Newton's Wrasse is native to specific regions where suitable reef habitats are present. Their distribution is limited to these areas, reflecting their preference for reef ecosystems in the wild.