Common name: Yamakawai

Scientific name: Plectranthias yamakawai Yoshino, 1972

General information

The Yamakawai, scientifically known as Plectranthias yamakawai, is a small and colorful member of the Serranidae family, which includes groupers and sea basses. This species is often referred to as the Geometric Pygmy Perchlet due to its intricate patterns and diminutive size. It is a relatively recent addition to the aquarium trade and is prized for its unique appearance and manageable size.

Details

Recommended minimum tank volume
75 liter (20 gallons)
Salinity
S.G. 1.020 to 1.025
Temperature
24 to 27 °C (75 to 81 °F)
Acidity
pH 8.1 to 8.4
Average size
8 cm (3″)
Care level
Moderate to easy Prefers rocky overhangs
Diet
Carnivore Enjoys mysis and brine shrimp
Social
Solo Can be territorial
Reefsafe
Yes
Aggression
Semi aggresive May nip at small fish
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
    Plectranthias
    Plectranthias
  7. Species
    Yamakawai
    Plectranthias yamakawai Yoshino, 1972

Care

Plectranthias yamakawai is suitable for intermediate to advanced aquarists due to its specific habitat requirements. It thrives in well-structured reef tanks with plenty of live rock for hiding and hunting. This species is not aggressive and can be kept with other peaceful fish. A varied diet of small meaty foods like mysis shrimp, brine shrimp, and finely chopped seafood is essential for their health.

Reproduction

Little is known about the breeding habits of Plectranthias yamakawai in the wild or in captivity. However, like many marine fish, they are likely to be pelagic spawners, releasing eggs and sperm into the water column where fertilization occurs.

Habitat

Plectranthias yamakawai is found in the Western Pacific, particularly around Japan and the Philippines. They inhabit deep reef slopes and drop-offs, typically at depths ranging from 50 to 150 meters. In the aquarium, replicating their natural environment with ample rockwork and moderate to low lighting is beneficial.