All fish / Pomacentridae

Blueline Damselfish

Chrysiptera caeruleolineata

Also known as blue-lined damsel, blueline damsel, yellow and blue damsel, orange blueline damsel, ルリホシスズメダイ, 蓝线金翅雀鲷

A small, bright yellow to orange damselfish with a thin electric blue line running from the snout along the top of the back. It lives on deeper outer reef slopes and is kept for its strong colour and modest size, which suits reef aquariums.

Care at a glance

Care level

Moderate

Temperament

Semi

Adult size

6 cm

Temperature

24 to 28 °C

pH

8.1 to 8.4

Smallest tank

100 litres

Keep as

Single fish or a mated pair

Diet

Omnivore: mysis, brine shrimp, quality flakes and pellets, marine algae

Swims

Middle of the tank

Lifespan

5 to 10 years

Water

Marine (saltwater)

Wild range

Western Pacific: Indonesia, Philippines, Papua New Guinea, Marshall Islands, Great Barrier Reef area

Breeding

Pairs lay sticky eggs on a cleaned hard surface and the male guards them until hatching. Spawning can happen in captivity but rearing the tiny pelagic larvae is difficult.

Good to know

Less aggressive than many damsels but still territorial, so avoid keeping several in small tanks. It comes from deep water and is uncommon in the trade, so specimens can be pricey and need careful acclimation.