Randall's Anthias
Pseudanthias randalli
Also known as Randalli Anthias, Randall's Fairy Basslet, Randall's Anthias Basslet
Care at a glance
- Temperature
- 75–81°F (24–27°C)
- pH
- 8.1–8.4
- Adult size
- 3.1 in (8 cm)
- Minimum tank
- 75 gal (285 L)
- Temperament
- Peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Hard
- Rarity
- Common
- Reef safe
- Reef safe
- Origin
- Western Pacific from Indonesia to Micronesia, near caves and ledges on reef slopes.
- Family
- Serranidae
Overview
Keep one, or a male with several females, in at least 285 litres with caves and overhangs and moderate flow at 24 to 27 C. It is reef safe and coral-safe, and slightly easier to feed than open-water anthias, but still needs several small meals a day of mysis, enriched brine and copepods. A refugium producing live pods helps a lot. Provide plenty of rockwork so it feels secure.
In the wild
Randall's anthias is a small pink-and-yellow anthias that stays close to caves and overhangs rather than open water. It darts in and out of the reef structure catching plankton. It is more bottom-associated and less exposed than shoaling anthias. Males carry brighter fin markings than females.
Good to know
Pseudanthias randalli reaches about 8 cm and lives near reef ledges in the western Pacific. It follows the usual anthias pattern of female-to-male sex change within a group. The species is named for ichthyologist John Randall.
Did you know
It hugs caves and ledges more than most anthias, so a reef with lots of overhangs suits it far better than an open tank.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping Randall's Anthias?
Track water tests, reminders and stocking fit.
Related species

Bartlett's Anthias
Pseudanthias bartlettorum3.5 in (9 cm)70 gal (265 L)72–79°F (22–26°C)
Dispar Anthias
Pseudanthias dispar3.7 in (9.5 cm)70 gal (265 L)72–79°F (22–26°C)
Evansi Anthias
Pseudanthias evansi4.7 in (12 cm)75 gal (285 L)75–81°F (24–27°C)
Purple Queen Anthias
Pseudanthias tuka4.7 in (12 cm)75 gal (285 L)75–81°F (24–27°C)
Huchtii Anthias
Pseudanthias huchtii4.7 in (12 cm)90 gal (340 L)75–81°F (24–27°C)
Bicolor Anthias
Pseudanthias bicolor5.1 in (13 cm)125 gal (475 L)72–79°F (22–26°C)