Ostracion cubicum
31cm
1-280m
6 sites
Ostraciidae
Imagine encountering a bright yellow, almost cartoonish cube floating along the reef – that's likely a Yellow Boxfish! These charismatic members of the boxfish family are a true highlight for any dive or snorkel trip. Their vibrant colour, unusual shape, and seemingly awkward swimming style make them instantly recognizable and endlessly entertaining. While they might seem delicate, their boxy body is actually a tough exoskeleton, offering protection from predators. Divers often spot them hovering near coral formations, searching for small invertebrates to munch on. Keep an eye out around the Great Barrier Reef, Japan, and Korea for your chance to meet this quirky character!
The Yellow Boxfish is easily identified by its bright yellow colour (especially in juveniles; adults can be more muted), distinctive box-like shape, and black spots covering its body. They have small mouths and fins that seem disproportionately small for their body size, leading to a somewhat comical swimming style. Their rigid body means they can't bend easily, so they often manoeuvre using only their fins.
