Golden butterflyfish

Chaetodon semilarvatus

Also known as Addis Butterflyfish, Bluecheek Butterflyfish, Golden Semilarvatus Butterflyfish, Masked Butterflyfish

SaltwaterFish

Care at a glance

Temperature
75–82°F
24–28°C
pH
8.1–8.4
Adult size
9.1 in
23 cm
Minimum tank
151 gal
570 L
Temperament
Peaceful
Social behavior
Social
Swim level
Middle
Difficulty
Medium
Breeding
No record
Rarity
Common
Reef safe
Not reef safe
Family
Chaetodontidae
Origin
Endemic to the Red Sea and Gulf of Aden, sheltering under table corals and rocky ledges on coastal reefs.

Overview

Give this fish a 570 litre or larger aquarium with plenty of rockwork and open water, kept at 24 to 28 C and pH 8.1 to 8.4. It is not reef safe and will nip soft corals, stony polyps, tube worms, and anemones. Feed a varied diet of mysis, enriched brine shrimp, chopped seafood, and algae based foods two or three times a day. It is peaceful with other species but can quarrel with other butterflyfish in tight quarters.

In the wild

The golden butterflyfish forms pairs and small groups that hover under table corals and overhangs during the day. It grazes on coral polyps, small invertebrates, and algae across shallow reef slopes. This is a large, deep bodied butterflyfish that needs a lot of open swimming room. It does best in a mature system with stable water and calm tankmates.

Good to know

Chaetodon semilarvatus is a member of the butterflyfish family Chaetodontidae and is restricted to the Red Sea region. The blue mask over its eyes gives it the alternate name bluecheek butterflyfish. It is one of the more coral tolerant large butterflyfish but still samples soft corals and polyps.

Did you know

Golden butterflyfish are often seen resting in pairs or trios beneath the same coral head, and a bonded pair will stay together for years.

Weekly picks

Tank mates

Golden butterflyfish 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 Golden butterflyfish need?

A Golden butterflyfish needs at least 151 gal (570 L). It spends most of its time in the middle.

What temperature and pH does a Golden butterflyfish need?

A Golden butterflyfish is comfortable at 75–82°F (24–28°C) with a pH of 8.1–8.4.

How big does a Golden butterflyfish get?

An adult Golden butterflyfish reaches about 9.1 in (23 cm).

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