Evansi anthias
Pseudanthias evansi
Also known as Yellowback Anthias, Yellowtail Anthias, Evans' Anthias, Evansi Fairy Basslet
SaltwaterFish
Care at a glance
- Temperature
- 75–81°F
- 24–27°C
- pH
- 8.1–8.4
- Adult size
- 4.7 in
- 12 cm
- Minimum tank
- 75 gal
- 285 L
- Temperament
- Peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Difficult
- Breeding
- Hard
- Rarity
- Common
- Reef safe
- Reef safe
- Family
- Serranidae
- Origin
- Western Indian Ocean including the Maldives and East Africa, on outer reef slopes.
Overview
House a single evansi in at least 285 litres, or a male with five or more females in 470 litres or more, at 24 to 27 C with good flow. It is reef safe and coral-friendly but demands stable water and frequent feeding of copepods, mysis and enriched brine several times daily. Provide open swimming water and plenty of rock for retreat. Best for experienced keepers who can maintain steady conditions.
In the wild
The evansi anthias is a violet-bodied anthias with a bright yellow back and tail, from Indian Ocean reef slopes. It shoals in open water and feeds on drifting plankton. It is peaceful but sensitive to water quality and diet. Groups sort themselves into a single male with several females.
Good to know
Pseudanthias evansi grows to around 12 cm, with most aquarium fish nearer 8 to 10 cm. It is a protogynous hermaphrodite, so the dominant female becomes male when needed. The species is centered on the Maldives and East Africa.
Did you know
In a group every fish starts as a female, and if the lone male dies the top female changes sex to replace him.
Weekly picks
Tank mates
Evansi 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.
Skunk cleaner shrimp
Lysmata amboinensis
Saltwater2.4 in (6 cm) · 20 gal (75 L)73–81°F (23–27°C)
Ring cowrie
Monetaria annulus
Saltwater1.2 in (3 cm) · 20 gal (75 L)75–81°F (24–27°C)
Sunburst anthias
Serranocirrhitus latus
Saltwater5.1 in (13 cm) · 70 gal (265 L)72–81°F (22–27°C)
Klein's butterflyfish
Chaetodon kleinii
Saltwater5.9 in (15 cm) · 79 gal (300 L)75–81°F (24–27°C)
Tiger / strawberry conch
Conomurex luhuanus
Saltwater2.8 in (7 cm) · 20 gal (75 L)75–81°F (24–27°C)
Radiant wrasse
Halichoeres iridis
Saltwater4.5 in (11.5 cm) · 75 gal (284 L)72–79°F (22–26°C)
Common questions
What size tank does an Evansi anthias need?
An Evansi anthias needs at least 75 gal (285 L). It spends most of its time in the middle.
What temperature and pH does an Evansi anthias need?
An Evansi anthias is comfortable at 75–81°F (24–27°C) with a pH of 8.1–8.4.
How big does an Evansi anthias get?
An adult Evansi anthias reaches about 4.7 in (12 cm).
Related species
4.7 in (12 cm)75 gal (285 L)75–81°F (24–27°C)Purple queen anthias
Pseudanthias tuka
4.7 in (12 cm) · 75 gal (285 L)
3.7 in (9.5 cm)70 gal (265 L)72–79°F (22–26°C)Dispar anthias
Pseudanthias dispar
3.7 in (9.5 cm) · 70 gal (265 L)
3.5 in (9 cm)70 gal (265 L)72–79°F (22–26°C)Bartlett's anthias
Pseudanthias bartlettorum
3.5 in (9 cm) · 70 gal (265 L)
3.1 in (8 cm)75 gal (285 L)75–81°F (24–27°C)Randall's anthias
Pseudanthias randalli
3.1 in (8 cm) · 75 gal (285 L)
4.7 in (12 cm)90 gal (340 L)75–81°F (24–27°C)Huchtii anthias
Pseudanthias huchtii
4.7 in (12 cm) · 90 gal (340 L)
5.1 in (13 cm)125 gal (475 L)72–79°F (22–26°C)Bicolor anthias
Pseudanthias bicolor
5.1 in (13 cm) · 125 gal (475 L)