10m depth on a wall
Pipeline, Nelson Bay
Clifton Gardens, Sydney Harbour
This is a juvenile frogfish - you can tell by the banding in the body. Frogfish use their swim bladders to do something remarkable - they can make sounds or "sing" to attract mates. They can also swallow large prey thanks to their expandable stomachs.
Batrachoididae is the only family in the ray-finned fish order Batrachoidiformes. Fish in this family are usually called toadfish: both the English common name and scientific name refer to their toad-like appearance (batrakhos is Greek for frog).