Headband Humbug
Dascyllus reticulatus
Also known as: Reticulate dascyllus, Reticulated Damselfish
A bold little damselfish that claims coral heads as its personal territory.

About
The headband humbug (Dascyllus reticulatus) is a compact, reef-associated damselfish found across a broad stretch of the Indo-Pacific, from the Cocos-Keeling Islands in the eastern Indian Ocean all the way to Samoa and the Line Islands, ranging north to southern Japan and south to the Rowley Shoals. In the wild it gravitates toward branching coral heads, particularly Pocillopora, on outer lagoon and seaward reefs, where groups will hover closely above the coral and dart back inside at any hint of trouble. Its coloration is understated compared to some damsels: a pale grayish body with a reticulated or net-like scale pattern and the bold dark bands that give the fish its humbug name. Like most damsels, it has a personality that punches well above its weight. It forms schools in nature, but individuals can become territorial in the confines of an aquarium, so tank mates need to be chosen thoughtfully. Breeding behavior is well-documented. Males clean off a patch of rock or coral to serve as a nest site before spawning with a female. That kind of interactive behavior makes it interesting to observe, and its hardiness makes it a reasonable choice for a hobbyist with some reef experience who has a suitably sized system and a plan for managing its attitude.
Similar species
Other fish you might consider
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Headband Humbug get?
- The Headband Humbug reaches about 2–3.5" as an adult.
- What size tank does the Headband Humbug need?
- A minimum of 45 gallons is recommended for the Headband Humbug, with more room needed for a proper group.
- What water parameters does the Headband Humbug need?
- The Headband Humbug does best with a temperature of 72–82°F, a pH of 8–8.4.
- Is the Headband Humbug aggressive?
- The Headband Humbug is semi-aggressive. It can work in a community with careful tankmate choices and enough space.
- What does the Headband Humbug eat?
- The Headband Humbug is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- How long does the Headband Humbug live?
- With good care, the Headband Humbug typically lives 8-12 years.
- Is the Headband Humbug reef safe?
- The Headband Humbug is generally considered reef safe.