Royal Blue Damselfish

Royal Blue Damselfish

The Royal Blue Damselfish (Chrysiptera springeri), commonly called Springer's damsel, is a small reef fish of a deep, electric royal blue, finely flecked with darker spots around the head and back. Hardy, inexpensive and richly coloured, it is an easy fish for newcomers — and, helpfully, one of the more even-tempered damsels, often tolerating its own kind better than many of its relatives, which allows a small group to be kept in a larger tank.

It still has a damsel's confidence, but it is a gentler choice than the more notoriously aggressive species.

Natural Habitat & Origin

Chrysiptera springeri is found in the western Pacific, where it lives close to branching coral and rubble on reefs, sheltering among the structure and staying near cover. It is a small, active fish that keeps close to its chosen patch of reef.

In the aquarium it appreciates plenty of live rock with crevices and branching structure to shelter in and claim as territory.

Care Requirements

Maintain stable marine conditions: salinity around 1.024–1.026, pH 8.1–8.4, and a temperature of about 24–26°C (75–79°F). Reaching only about 6 cm (2.5 inches), it can be kept in tanks of around 75 litres (20 US gallons) or more with ample rockwork; a small group suits a larger system. It is exceptionally hardy, forgiving of beginner mistakes provided water quality is stable.

Diet & Feeding

The Royal Blue Damselfish is an omnivore, feeding on zooplankton, algae and small invertebrates in the wild. It readily accepts aquarium foods: offer frozen mysis and brine shrimp, quality marine flakes and small pellets, and foods with marine algae content. Feed small amounts a couple of times a day; it is an undemanding, eager feeder.

Behavior & Temperament

This is a semi-aggressive but comparatively mild damsel. It will defend a territory and can squabble, but it is generally more tolerant than many of its relatives, so a small group can sometimes be kept together in a larger tank with plenty of cover. In a small system, a single specimen avoids conflict. It is active and bold without being a serious bully.

Tank Mates

Pair it with peaceful to semi-aggressive reef fish — clownfish, other small damsels, gobies, smaller wrasses and similar. Avoid very timid fish in a small tank. It is fully reef-safe, leaving corals and ornamental invertebrates alone, making it an easy, colourful addition to a community reef.

Breeding

Like other damselfish, Chrysiptera springeri lays demersal eggs on a cleaned surface, guarded by the male, but rearing the pelagic larvae is rarely accomplished in the home aquarium. Trade specimens are wild-collected.

Common Health Issues

The Royal Blue Damselfish is among the hardiest marine fish, but it can still contract marine ich (Cryptocaryon irritans) or marine velvet (Amyloodinium ocellatum) under stress. Quarantine new arrivals and keep water quality stable. One of the easier and more even-tempered damsels, it is a colourful, resilient and beginner-friendly fish — a great choice for a first marine aquarium or a hit of deep blue in a reef.