Pennant Coralfish (Heniochus acuminatus)

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Pennant Coralfish

Pennant coralfish.jpg
Pennant Coralfish

Heniochus acuminatus

379 Litres (100 US G.)

25.4-27.9cm (10-11 ")


8.0 - 8.5

22.2-25.6°C (72 -78 °F)

8-12 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods

3-5 years



Additional names

Pennant Coralfish, Coachman, Poor Man's Moorish Idol, Longfin Bannerfish, Black and White Heniochus

Additional scientific names

Heniochus macrolepidotus




requires a close examnation

Tank compatibility[edit]

A peaceful shoaling fish, best kept in groups. May pick parasites off of tank mates. Not safe with small invertebrates or corals, unlike its close relative Heniochus diphreutes.


Carnivorous, should readily accept Mysid Shrimp or Clams, minced or on the half shell.

Feeding regime[edit]

Daily, ideally 3 times due to their high metabolism and active nature.

Environment specifics[edit]

Fish Only or large Reef Tank free of potential bullies, and with plenty of live rock for grazing and hiding.


Compatible with peaceful fish only. Will not bother most tank mates, but may fight each other with their horn-like projections if space is limited. Not to be trusted with small invertebrates or Corals.


This fish mimics the Moorish Idol in colouring, and looks very similar to Heniochus diphreutes, with a disc-like body shape and two thick black vertical bars. It differs in that its caudal and pectoral fins are yellow, the base colour of the body is iridescent silver and the face has little black and no yellow colouring. This fish also exhibits the elongated scythe-like dorsal fin.
Not to be mistaken for Heniochus chrysostomus.


External links[edit]