These are probably gray chubs, but might also be brassy chubs, or even a mixture of both. The two species look similar and are found in similar locations, in the surge zone. I like to find a safe spot, just outside this zone, and watch the swells roiling in and see chubs and other fish swish back and forth with the swell.
Chubs are quite common and they aren’t shy. They’ll pass quite close, often with a cheerful, engaging look, which makes them a fun fish to encounter.
Pacific trumpetfish have the ability to change their coloration according to their surroundings. In this case, the trumpetfish has turned yellow to blend in with a shoal of yellow tang, one of the most common fish on the reef.
So why bother with this subterfuge? Trumpetfish are predators, feeding mostly on small fish and some crustaceans. Appearing to be one of the crowd allows it to sneak up on unsuspecting prey. And while the very different shape of the trumpetfish might make it seem like it’s prey would be sure to spot it, from the front, which is where the prey is going to be, trumpetfish are very hard to spot.
Soldierfishes are nighttime plankton feeders. By day, most rest in sheltered spots such as under ledges, in caves, or in deep holes in the rocks. Pearly soldierfishes area little different in that, during the day, they rest in the open just above the reef.
Like all soldierfish, the pearly soldierfish is notable for its large eyes and reddish coloration, though usually with the pearly sheen that gives it its name.
Redbarred hawkfish, like other hawkfish, spend most of their time perched motionless on a rock or coral head, waiting to dart out at passing prey, usually little fish or small crustaceans. On some fish, the bars are more of a brick red, similar to the color of the red pencil urchin on the left of the photo.
Undulated moray eels have a reputation for being ill-tempered. This photo shows why it’s a good idea not to provoke that temper – an abundance of long, sharp teeth.
This big-eye emperor fish gave me the big eye, which is very unusual. Big-eye emperors are the kings of hanging in the water and imperceptibly drifting away. It’s an act of extreme futility to try and get close. The more you try, the farther away they get.
Orangespine unicornfish, like most unicornfish, tend to look a little grumpy. If they actually get grumpy, they have sharp orange spines at the base of the tail fin that they can use to express their displeasure. This doesn’t mean they’re a dangerous fish, just one not to provoke, which is a good attitude to have to any creature.
This is a group of Hawaiian zebra blennies that I came across in a tide pool one day. The largest of them, with the blue highlights and yellow cheeks is the breeding male. The others are likely females that he has won over.
Graham's Island 