Miniatus grouper

Cephalopholis miniata

Also known as Coral hind, Coral grouper, Vermilion seabass, Coral trout

SaltwaterFish

Care at a glance

Temperature
72–79°F
22–26°C
pH
8.0–8.4
Adult size
17.7 in
45 cm
Minimum tank
180 gal
680 L
Temperament
Aggressive
Own kind
One per tank
Tankmates
With caution
Diet
Carnivore
Difficulty
Difficult
Breeding
No record
Rarity
Common
Reef safe
Reef safe with caution
Family
Serranidae
Origin
Native to the Indo-Pacific from the Red Sea to the western Pacific, where it perches on coral heads and reef slopes and ambushes passing fish.

Overview

The Miniatus grouper is an aggressive ambush predator for a large saltwater tank. It is a job for an experienced keeper.

Did you know

The Miniatus grouper holds a small feeding territory on the reef. It has been filmed teaming up with roving moray eels, signaling the eel to flush prey out of holes the grouper cannot reach.

Caring for the Miniatus grouper

House a single Miniatus grouper in at least 180 gal (680 L), with a solid rock structure full of caves. It jumps, so keep the tank covered.

Keep the water at 72 to 79°F (22 to 26°C) and a pH of 8.0 to 8.4. Feed a varied meaty diet of chunky marine fish, shrimp and squid two or three times a week.

The Miniatus grouper is aggressive, and as it grows it becomes very territorial. It will chase other bottom fish out of its chosen patch of rock. It is coral safe but eats small fish, shrimp and crabs, so treat it as reef safe with caution. House it only with larger, robust tank mates, and keep one per tank.

Good to know

Cephalopholis miniata, also called the coral hind, is a member of the grouper family Serranidae. It is a protogynous hermaphrodite, so fish mature first as females and larger dominant fish later turn male. Aquarium fish usually stay smaller than wild ones, closer to 30 cm. Its bright orange-red body is covered in small blue spots, which fade and brighten with mood and health.

In the wild

The Miniatus grouper is native to the Indo-Pacific, from the Red Sea to the western Pacific. It perches on coral heads and reef slopes, built to sit on a ledge and rush out at passing fish. It spends most of the day inside a cave or overhang and darts out to grab any fish or shrimp that swims too close.

Common questions

What size tank does a Miniatus grouper need?

A Miniatus grouper needs at least 180 gal (680 L). It spends most of its time in the bottom.

What temperature and pH does a Miniatus grouper need?

A Miniatus grouper is comfortable at 72–79°F (22–26°C) with a pH of 8.0–8.4.

What does a Miniatus grouper eat?

A Miniatus grouper eats a varied meaty diet of chunky marine fish, shrimp and squid. Feed it two or three times a week.

How big does a Miniatus grouper get?

An adult Miniatus grouper reaches about 17.7 in (45 cm).

Related species