Tiger Cardinalfish

Imagine descending onto a vibrant coral reef and spotting a striking fish with bold tiger stripes – that's likely the Tiger Cardinalfish (Cheilodipterus macrodon)! These reef-associated beauties are relatively common in the Indo-Pacific region, from the Indian Ocean to the Great Barrier Reef, South Pacific, and even as far north as Japan and Korea. While not the most flamboyant fish on the reef, their distinctive markings and schooling behaviour make them a worthwhile sighting for any diver or snorkeller. Keep an eye out for them lurking amongst branching corals or sheltering under ledges, often in small groups or larger aggregations. Though they can be found at depths up to 100m, you're more likely to encounter them in shallower waters, making them accessible to both divers and snorkellers. Tiger Cardinalfish are carnivores, actively hunting small invertebrates and crustaceans at night. While you may not witness their nocturnal hunts, observing them during the day offers a glimpse into the complex ecosystems of coral reefs. They typically grow to around 17cm, but can reach up to 25cm, making them a medium-sized fish easily spotted amongst the reef's inhabitants. While they don't have a particularly high "diver appeal score", their widespread distribution means you have a good chance of spotting one on your next dive!