Hawaii Reef Fish Guide
Butterflyfishes
Butterflyfishes are some of the easiest reef fish to notice in Hawaii, with bright colors, slim round bodies and bold markings near the eyes. They often move close to coral reefs, where snorkelers and divers can watch them feed and weave through the reef.
Butterflyfishes in Hawaii
Butterflyfishes are among the most familiar reef fish in Hawaii. Many have bright yellow colors, bold markings and slim, disk-like bodies that make them easy to spot while snorkeling or diving. About 130 butterflyfish species live worldwide, and 23 occur in Hawaiian waters.
These fish are often seen on coral reefs, where they move around coral heads, rocky areas and reef cracks. Their thin bodies help them slip through narrow spaces, which gives them a quick escape route when a predator comes close.
How to Recognize Butterflyfishes
One helpful clue is the dark stripe that often runs across the eye. This marking can hide the real eye and make it harder for predators to aim. Some butterflyfishes also have a dark spot near the tail that looks like a false eye. That can confuse predators about which end is the head.
Butterflyfishes often feed close to the reef. Depending on the species, they may pick at tiny reef animals, algae or food found among coral and rocks. Many are active during the day, so they are a favorite sight for snorkelers.
Pairs and Hawaiian Names
Some butterflyfishes are seen in pairs, and certain species may form long-term bonds. Watching two fish move together over the reef is one of the sweet little moments visitors may notice underwater.
In Hawaiian, butterflyfishes had several names, including kikakapu, lauhau and lauwiliwili. Related pages include the Hawaii fish guide, angelfishes, damselfishes, wrasses and Hawaii snorkeling.
