Sunrise Dottyback

Sunrise Dottyback

The Sunrise Dottyback (Pseudochromis flavivertex), also called the yellow-blue or sunrise dottyback, is a small, beautifully coloured reef fish — a bright blue body topped with a sunrise-yellow stripe along the back. Hardy, inexpensive and dazzling, it brings a jewel-like accent to nano and small reef aquariums. Helpfully, it tends to be a little more even-tempered than some of the feistier dottybacks, though it still has its own bold streak.

Its colour and toughness make it an easy and rewarding fish for newer marine keepers.

Natural Habitat & Origin

Pseudochromis flavivertex is found in the Red Sea and western Indian Ocean, where it lives close to the reef, sheltering among rock, rubble and crevices and darting out to feed. It is a secretive fish that quickly retreats into cover when disturbed.

In the aquarium it wants exactly that: plenty of live rock with holes and caves to claim as territory and shelter.

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 7 cm (3 inches), it is well suited to tanks of around 75 litres (20 US gallons) and up, provided there is abundant rockwork. A secure lid is wise, as dottybacks can jump. It is hardy and tolerant of typical reef conditions.

Diet & Feeding

The Sunrise Dottyback is a carnivore, feeding on small crustaceans and zooplankton in the wild. In the aquarium it eagerly accepts meaty foods: frozen mysis and enriched brine shrimp, finely chopped seafood and quality marine pellets and flakes. Feed once or twice a day; it is an easy, enthusiastic feeder.

Behavior & Temperament

This is a semi-aggressive but comparatively even-tempered dottyback. It will defend a territory and can squabble with similar fish, but it is generally less belligerent than many Pseudochromis. It is best added later in a stocking plan so it cannot dominate the whole tank, and kept as a single specimen in smaller systems. It spends its time patrolling and defending its patch of rock.

Tank Mates

Pair it with robust tankmates that can hold their own — clownfish, damsels, larger wrasses and similar — rather than very shy or tiny fish. It is reef-safe with corals, though as a small predator it may eat ornamental shrimp, tiny crustaceans and bristleworms, which some keepers consider a useful trait.

Breeding

Dottybacks such as Pseudochromis flavivertex are increasingly captive-bred, and tank-raised specimens — which tend to be hardy and well-adjusted — are sometimes available. Males guard a clutch of eggs in a crevice; rearing the larvae requires dedicated effort but is achievable for committed breeders.

Common Health Issues

The Sunrise Dottyback is hardy and not especially disease-prone, but like all marine fish it can contract marine ich (Cryptocaryon irritans) or marine velvet (Amyloodinium ocellatum) under stress. Quarantine new arrivals, keep water quality stable, and secure the lid against jumping. Mindful of its temperament when choosing tankmates, it is otherwise an easy, brilliantly coloured and rewarding fish — and a striking splash of blue and gold for a small reef.