Redbelly Yellowtail Fusilier
In nature, the Redbelly Yellow Fusilier Caesio cuning lives in schools on rocky coral reefs along coastal areas in the Indo Pacific. Other names it is known by include the Yellowtail Fusilier and Red Bellied Fusilier.
It is a silvery blue saltwater fish with an oval shaped body and rounded head. Blue markings appear on its head and across the top of its body midline and above. It has a flush of pink on its underbelly, a yellow caudal fin, and a black spot at the base of its pectoral fins.
The Redbelly Yellow Fusilier is a fast moving marine fish that should be housed in a well-established aquarium with large open swim areas and areas in which to hide.
This member of the Caesionidae family is a carnivore that is an active grazer and should be fed zoo
| Features | Details |
|---|---|
| Species | Caesio cuning |
| Body Shape | Oval with rounded head |
| Coloration | Silvery blue with blue markings, pink underbelly, yellow caudal fin, black spot at pectoral fin base |
| Behavior | Active, fast-moving, social, grazes on small invertebrates |
| Water Conditions | Well-established aquarium with open swimming areas and hiding spots |
FAQ
What is the typical size of a Redbelly Yellowtail Fusilier?
Please contact customer service
What kind of diet does this fish require?
It is a carnivore and active grazer, best fed small live or frozen foods such as brine shrimp, mysis shrimp, or small crustaceans.
How much space does it need in an aquarium?
It requires a well-established tank with large open swim areas and plenty of hiding spots, such as rocks or coral structures.

Sebastian Avery –
The Redbelly Yellowtail Fusilier is a vibrant addition to my reef tank. It swims actively and adds a lot of movement. The coloration is striking, especially the pink underbelly and yellow tail. I’ve provided plenty of hiding spots and open areas, and it’s thriving.
Piers Burgess –
Great fish to have in a larger saltwater setup. It’s active and social, and the blue and pink markings stand out. Feeding it small frozen foods works well. Needs a spacious tank with hiding places.
Ryan Clark –
I’ve had this fish for three months now and it’s very healthy. It’s not aggressive and enjoys swimming around the tank. The color changes slightly in different lighting, which is nice to watch.