
Source: Wikimedia Commons
Microspathodon chrysurus
A damselfish with vivid blue body and yellow tail. Hardy but becomes aggressive when grown.
The yellowtail damselfish is a species of damselfish native to tropical areas such as the Caribbean coast of Panama. Damselfish are abundant in coral reef environments. The International Union for Conservation of Nature lists this fish as being of "least concern". The species is exploited on a minor scale, for fisheries and the aquarium trade. It may be threatened by the invasive lionfish.
Source: Wikipedia (CC BY-SA 4.0)
Origin
tropical areas such as the Caribbean coast of Panama
Lifespan
5-8 years
Size
6-8cm
Temperature
23〜26℃
Pellets, Frozen food
Specific gravity 1.023-1.025
Maintain 24-26°C
Becomes territorial when grown
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.
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.
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Very hardy but watch aggression
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Yellowtail Damselfish is 23〜26℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Yellowtail Damselfish is 5-8 years. With proper care and nutrition, they can live a long and healthy life.
Yellowtail Damselfish typically reaches 6-8cm as an adult. Size may vary depending on care conditions and individual genetics.
Yellowtail Damselfish feeds on: Pellets, Frozen food. Aim for a balanced diet with appropriate feeding frequency.
The price of Yellowtail Damselfish varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 23, 2026