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McCosker's Flasher Wrasse
IntermediateParacheilinus mccoskeri
Beautiful small wrasse with orange body and neon blue lines. Males 'flash' by spreading fins during courtship — hence the name. Reef safe and community-friendly.
Difficulty
Intermediate
Temperature
24〜27℃
Lifespan
4-6 years
Size
6-8cm
Diet
Zooplankton, frozen food, pellets
About
McCosker's flasher wrasse (Paracheilinus mccoskeri) is a small flasher wrasse of the genus Paracheilinus found from the Indian Ocean to the western Pacific. Males have an orange-to-red body marked with neon-blue lines and perform a flamboyant display known as flashing, in which they spread their fins wide and momentarily intensify their colors during courtship, giving the species its name. This courtship can be observed in the aquarium, and a male's coloration is shown off best when kept in a harem with several females. Peaceful and reef-safe, it is an excellent community species that does not harm corals or invertebrates, but as an active swimmer prone to jumping it requires a tightly fitted lid. Good water quality and ample swimming space are recommended.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
Coral reefs of the Indian Ocean to the western Pacific
Lifespan
4-6 years
Size
6-8cm
Temperature
24〜27℃
Diet
Zooplankton, frozen food, pellets
Care Guide
Tank
60cm+. Lid absolutely essential — extreme jumper
Keeping Style
Care Specifications
- pH
- 8.1–8.4
- Water Temp.
- 22–26℃
- Specific Gravity
- 1.02–1.025
- Salinity
- 33–35 ppt
- Min. Tank
- 208 L
PeacefulReef safe
Sources: LiveAquaria
References & Sources
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Taxonomy & Authority
Regulations & Conservation Status
Not CITES-listed
Sources: CITES Appendices (species not listed) / 環境省 特定動物リスト / 環境省 特定外来生物等一覧
Regulations may change. Always verify the latest information with the relevant authorities.
McCosker's Flasher Wrasse Listings
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