Epinephelus flavocaeruleus
Source: JJPhoto.dk
Epinephelus flavocaeruleus
Source: JJPhoto.dk
Epinephelus flavocaeruleus
Source: JJPhoto.dk

Facts

Latin name Epinephelus flavocaeruleus - (Lacepède, 1802)
Common name Blue-and-yellow grouper
Family Serranidae - Epinephelus
Origin East Indian Ocean, West Indian Ocean
Max length 90.0 cm (35.4")

As aquarium fish

Minimum volume 2800 l (739 gal)
Hardiness Hardy
Suitable for aquarium Suitable with care
Reef safe Reef safe with caution
Aggressiveness Might be aggressive towards similar species

Food

Recommended
  • Larger crustaceans (Shrimp, crabs...)
  • Other invertebrates
  • Fish

Demand a very large aquarium when fully grown

This species needs a very large aquarium when fully grown.

Exactly how big the aquarium should be is hard to say, but the size of this species is such, that it cannot normally be kept in a home aquarium.

Grows fast

This species grows very quickly if fed well.

Threat to fish and crustaceans

This species eats all kinds of fish, shrimps, crabs etc. which are of suitable size.

Heavy load

This species eats a great deal and demands an aquarium that can tolerate such a heavy load.

Requires a varied diet

This species must be fed with an appropriately varied diet.

Requires plenty of space for swimming.

This species revels in swimming and requires an aquarium with ample space.

Hermaphroditic

This species can change gender from female to male.

When a male is needed, a female changes sex and takes on the role.

Can be aggressive

This species can be aggressive when kept together with fish that are very similar, or if they are not provided with adequate space.

Description

When young these fish have a clear blue colour with yellow fins, as they get older the colour turns darker and can also become black or purple.

Family description (Serranidae)

The Sea Bass family (Serranidae) spans a broad spectrum with regards to how suitable they are to aquaria, as some are best suited to specialist or larger aquaria, while other are often seen in reef aquaria.

Below are described the five subfamilies one sees most often in aquaria. There are however other species one can also keep under the right circumstances, but these are for the most, large predatory fish.

Anthias (Anthiinae)
The Anthias species spans over many different genera, but the most common is the Pseudanthias genus. They mostly have an attractive orange or pink shade.

They are generally all reef safe and peaceful.
There is however a large difference to their food requirements, some species demand constant feeding, whereas others can get used to being fed once a day.

The easiest species are the following: P. bartelettorum, P. bicolor, P. dispar, P. huchtii and P. squamipinnis.

Anthias include among others the following genera: Anthias, Luzonichthys, Nemanthias, Odontanthias, Pseudanthias, Sacura and Serranocirrhitus

Liopropomatinae
This subfamily encompasses some of the smallest fish in the Serranidae family, they can be very colourful but shy. The Liopropoma genus encompasses many species which are suitable for aquaria, however they normally thrive best in a very peaceful- or nano aquarium.

Grouper (Epinephelinae)
These fish grow typically too large for most home aquaria. There are however some species that do lend themselves to the slightly bigger domestic aquarium. Several of the species look very impressive and often have a interesting personality, and they often recognize the aquarist and will become tame over time. 

Groupers are predatory fish and eat everything they can swallow; fish, crabs, shrimps and sometimes other invertebrates. Like most large predatory fish they excrete a lot of nutrients to the water, so one therefore needs a good filter system.

Groupers include among others the following genera: Aethaloperca, Cephalopholis, Chromileptes, Epinephelus, Paranthias and Pogonoperca

Soapfishes (Grammistinae)
These fish are like the Groupers predatory fish, but they do not typically, grow so large. They are relatively hardy, but some of the species demand a thorough preperation if one wants to be successful.

Soapfishes are generally very shy and will often hide under an overhang during the day, and hunt at night.

Soapfishes include among others the genera: Grammistes

Serraninae
The most common genera in captivity is Dwarf Seabasses (Serranus) and Hamlets (Hypoplectrus).

See the description of the individual genera below.

FishBase

Aquarium trade Yes
Distribution Indian Ocean: Gulf of Aden south to Port Alfred, South Africa and east to the northwest tip of Sumatra, Indonesia. Also found in the islands of western Indian Ocean, including Cargados Carajos and Rodriguez. Not known from the Red Sea and Persian Gulf.
English common names Yellowfin grouper, Blue and yellow grouper, Blue and yellow reef cod
Danish common names Blågul koralbars
German common names Orange-Zackenbarsch
French common names Vieille plate, Mérou faraud, Plat

References and further reading

About references

Scott W. Michael. 2001. Basslets, Dottybacks & Hawkfishes: v. 2 (Reef Fishes) - TFH Publications / Microcosm Ltd. - (English)
Bob Fenner. Basses of the Genus Epinephelus - Wet Web Media - (English)
WWM Crew. FAQs about Basses of the Genus Epinephelus - Wet Web Media - (English)

Bob Fenner. The Basses, Family Serranidae - Wet Web Media - (English)

Froese, R. and D. Pauly. Editors. 2014. FishBase. World Wide Web electronic publication. www.fishbase.org, version (08/2014).

Tags

hermaphroditic, eats shrimp, eats crab, eats fish, predatory
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