Bartlett's anthias

Pseudanthias bartlettorum

Also known as Bartlett's Fairy Basslet, Yellowtail Anthias

SaltwaterFish

Care at a glance

Temperature
72–79°F
22–26°C
pH
8.1–8.4
Adult size
3.5 in
9 cm
Minimum tank
70 gal
265 L
Temperament
Peaceful
Social behavior
Social
Swim level
Middle
Difficulty
Medium
Breeding
Hard
Rarity
Common
Reef safe
Reef safe
Family
Serranidae
Origin
Western Pacific (Marshall and Caroline Islands)

Overview

One of the hardier and more peaceful anthias, which makes it a good first anthias, but it is still a constant planktivore that needs several small feedings a day of mysis, enriched brine, cyclops and pellets. Keep it as a harem of one male with several females; it harasses subdominant group members far less than the lyretail, so groups stay stable in modest tanks. Genuinely peaceful toward other fish.

In the wild

Comes from clear outer-reef waters of the western Pacific, especially around the Marshall and Caroline Islands, where it schools in the open water above coral heads feeding on drifting plankton. It likes strong water movement and open space to swim, with live rock nearby for shelter. In captivity it appreciates a mature reef with plenty of caves and briskly moving water.

Good to know

Like other Pseudanthias, Bartlett's Anthias is a protogynous hermaphrodite that changes from female to male as the dominant fish in a group. Males show a magenta-to-lavender body with a yellow back and tail, while females are more uniformly yellow and violet. Its name honors the Bartlett family who collected early specimens.

Did you know

It is widely considered one of the easiest anthias to get eating prepared foods, taking frozen and even pellet food more readily than most of its relatives, which is why it is a common gateway into the group.

Weekly picks

Tank mates

Bartlett's anthias is a peaceful, social species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Check the full mix in the stocking calculator

Common questions

What size tank does a Bartlett's anthias need?

A Bartlett's anthias needs at least 70 gal (265 L). It spends most of its time in the middle.

What temperature and pH does a Bartlett's anthias need?

A Bartlett's anthias is comfortable at 72–79°F (22–26°C) with a pH of 8.1–8.4.

How big does a Bartlett's anthias get?

An adult Bartlett's anthias reaches about 3.5 in (9 cm).

Related species