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Chrysiptera parasema, also known as Yellowtail Damselfish or Goldtail demoiselle is a popular saltwater aquarium fish from the Indo-Pacific.

Appearance

A small marine fish that reaches three inches in length. It is blue with a yellow tail.

In the Aquarium

Chrysiptera parasema is a hardy member of a saltwater aquarium. Because of this and its usually low price it is often recommended as a way for novice marine aquarium keepers to gain experience. Thirty gallons is typically quoted as the minimum tank size required to permanently house this fish.

It is less aggressive than most damselfish but will sometimes harass more passive fish. Despite its comparatively peaceful nature it can be territorial with members of its own species. This aggression can sometimes be reduced by keeping them in groups of three to seven. They do show schooling behavior when kept in large groups.^[1] Despite its hardy nature, it also must not be placed in an aquarium with larger predatory fish such as lionfish^{[disambiguation needed ]}, and grouper which will often see it as a food source.

References

• liveaquaria.com Page on Chrysiptera parasema
• fishlore.com Page on Chrysiptera parasema

1. ^ http://www.centralpets.com/animals/fish/saltwater_fish/swf2087.html

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Chrysiptera hemicyanea, also known as Azure Damselfish or half-blue damselfish is a popular saltwater aquarium fish from the Indo-Pacific.

Appearance

A small marine fish that reaches four inches in length. It is blue with a yellow tail and belly and is sometimes mistaken with the yellowtail damselfish which has less yellow, particularly on its belly.

In the Aquarium

Chrysiptera hemicyanea is a hardy member of a saltwater aquarium. Because of this and its usually low price it is often recommended as a way for novice marine aquarium keepers to gain experience. Thirty gallons is typically quoted as the minimum tank size required to permanently house this fish. To keep a small group a tank of fifty five gallons will be required.

It is less aggressive than most damselfish but will sometimes harass more passive fish. Despite its comparatively peaceful nature it can be territorial with members of its own species. It is however reef safe and will not harm invertebrates. Even though it has a hardy nature, it also must not be placed in an aquarium with larger predatory fish such as lionfish^{[disambiguation needed ]}, and grouper which will often see it as a food source.

References

• liveaquaria.com Page on Chrysiptera hemicyanea

Chrysiptera is a genus of damselfish in the family Pomacentridae.

Species

• Chrysiptera albata Allen & Bailey, 2002
• Footballer demoiselle, Chrysiptera annulata (Peters, 1855)
• Twinspot damselfish, Chrysiptera biocellata (Quoy & Gaimard, 1825)
• Bleeker's damsel, Chrysiptera bleekeri (Fowler & Bean, 1928)
• Surge damselfish, Chrysiptera brownriggii (Bennett, 1828)
• Blueline demoiselle, Chrysiptera caeruleolineata (Allen, 1973)
• Sapphire devil, Chrysiptera cyanea (Quoy & Gaimard, 1825)
• Chrysiptera cymatilis Allen, 1999
• Yellowfin damselfish, Chrysiptera flavipinnis (Allen & Robertson, 1974)
• Canary demoiselle, Chrysiptera galba (Allen & Randall, 1974)
• Chrysiptera giti Allen & Erdmann, 2008^[1]
• Grey demoiselle, Chrysiptera glauca (Cuvier, 1830)
• Azure demoiselle, Chrysiptera hemicyanea (Weber, 1913)
• Chrysiptera kuiteri Allen & Rajasuriya, 1995
• Black damselfish, Chrysiptera niger (Allen, 1975)
• Southern demoiselle, Chrysiptera notialis (Allen, 1975)
• Blue-spot demoiselle, Chrysiptera oxycephala (Bleeker, 1877)
• Goldtail demoiselle, Chrysiptera parasema (Fowler, 1918)
• Chrysiptera pricei Allen & Adrim, 1992
• Easter damselfish, Chrysiptera rapanui (Greenfield & Hensley, 1970)
• King demoiselle, Chrysiptera rex (Snyder, 1909)
• Rolland's demoiselle, Chrysiptera rollandi (Whitley, 1961)
• Sheila's damselfish, Chrysiptera sheila Randall, 1994
• Sinclair's demoisselle, Chrysiptera sinclairi Allen, 1987
• Springer's demoiselle, Chrysiptera springeri (Allen & Lubbock, 1976)
• Starck's demoiselle, Chrysiptera starcki (Allen, 1973)
• Talbot's demoiselle, Chrysiptera talboti (Allen, 1975)
• Southseas devil, Chrysiptera taupou (Jordan & Seale, 1906)
• Tracey's demoiselle, Chrysiptera traceyi (Woods & Schultz, 1960)
• Threeband damselfish, Chrysiptera tricincta (Allen & Randall, 1974)
• One-spot_demoiselle, Chrysiptera unimaculata (Cuvier, 1830)

References

• Froese, Rainer, and Daniel Pauly, eds. (2006). Species of Chrysiptera in FishBase. June 2006 version.