Common name: bluelined hind

Scientific name: Cephalopholis formosa (Shaw, 1812)
Blue Line Grouper, Cephalopholis Formosa closeup

General information

The Blue-spotted Grouper, Cephalopholis formosa, is a striking fish known for its vibrant blue spots against a yellow to greenish background. This species is part of the Serranidae family, which includes groupers and sea basses. It is a popular choice among advanced aquarists due to its bold colors and interesting behavior.

Details

Recommended minimum tank volume
300 liter (79 gallons)
Salinity
S.G. 1.020 to 1.026
Temperature
22 to 28 °C (72 to 82 °F)
Acidity
pH 7.8 to 8.4
Average size
40 cm (1′4″)
Care level
Moderate to easy Needs hiding places
Diet
Carnivore Prefers live/frozen foods
Social
Solo Territorial, best kept alone
Reefsafe
No May eat smaller fish/inverts
Aggression
Semi aggresive Aggressive towards tank mates
Captive bred
No
Conservation statusSource: IUCN Red List
ExtinctThreatenedLeastConcern

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Ray-finned Fishes
    Actinopterygii
  4. Order
    Perch-like Fishes
    Perciformes
  5. Family
    Groupers
    Serranidae
  6. Genus
    Grouper
    Cephalopholis
  7. Species
    bluelined hind
    Cephalopholis formosa (Shaw, 1812)
  8. Synonyms
    Sciaena formosa Shaw, 1812

Care

Blue-spotted Groupers require a large aquarium with plenty of hiding places, as they can grow up to 40 cm in length. They are predatory fish and should only be housed with other large, non-aggressive species that they cannot eat. A varied diet of meaty foods such as fish, squid, and crustaceans is essential for their health.

Reproduction

In the wild, Blue-spotted Groupers are protogynous hermaphrodites, meaning they start life as females and can change to males as they mature. Breeding in captivity is rare and challenging, often requiring large systems and expert care.

Habitat

Native to the Indo-Pacific region, Blue-spotted Groupers are found on coral reefs and rocky outcrops. They prefer areas with clear water and moderate to strong currents, where they can ambush prey.