Shoal of Pygmy Sweeper, Parapriacanthus ransonneti, Triton Bay, West Papua, Indonesia

Pygmy Sweepers surrounding Coral Reef, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

School of glassfish, Komodo, Indonesia, Southeast Asia, Asia

Coral reef scene, shoal of glassfish (Arapriacanthus ransonneti), Ras Mohammed National Park, Sharm el-Sheikh, Red Sea, Egypt, North Africa, Africa

Tasselled Wobbegong, Eucrossorhinus dasypogon, Raja Ampat, West Papua, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Shoal of Pygmy Sweeper, Parapriacanthus ransonneti, Kai Islands, Moluccas, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Pygmy Sweepers surrounding Coral Reef, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

Scuba Diver at Bridge of Hembadhoo Wreck, North Male Atoll, Maldives

Glassfish (Parapriacanthus ransonneti) shoal, Ras Mohammed National Park, Sharm el-Sheikh, Red Sea, Egypt, North Africa, Africa

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Pygmy Sweepers surrounding Coral Reef, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Pygmy Sweepers surrounding Coral Reef, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

Copper Sweeper, Pempheris oualensis, Triton Bay, West Papua, Indonesia

Pygmy Sweepers surrounding Coral Reef, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

Copper Sweeper, Pempheris oualensis, Triton Bay, West Papua, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Glassy Sweepers in Coral Reef, Parapriacanthus ransonneti, Komodo National Park, Indonesia

Lionfish (Pterois volitans), Similan Islands, Thailand, Andaman Sea, Southeast Asia, Asia

Redmouth Grouper (Aethaloperca rogaa) Showing its namesake bright red inside mouth. Can often be found living amongst colonies of Yellow Sweeper (Parapriacanthus ransonneti) which it vigorously protects from attack by passing jacks, in return for feeding from the same glassfish colony. Red Sea.

Redmouth Grouper (Aethaloperca rogaa). So named because of its bright red inside mouth. Can often be found living amongst colonies of Yellow Sweeper (Parapriacanthus ransonneti) which it vigorously protects from attack by passing jacks, in return for feeding from the same glassfish colony. Red Sea.

A Diver observing a Giant sea fan (Annella mollis) and the Glass fish (Parapriacanthus ransonneti) that have used its cover as a safe haven. Sharm El Sheikh, South Sinai, Red Sea, Egypt.

A Diver observing a Giant sea fan (Annella mollis) and the Glass fish (Parapriacanthus ransonneti) that have used its cover as a safe haven. Sharm El Sheikh, South Sinai, Red Sea, Egypt.

Redmouth Grouper Ò Aethaloperca rogaa Ò So named because of its bright red inside mouth. Can often be found living amongst colonies of Yellow Sweeper (Parapriacanthus ransonneti) which it vigorously protects from attack by passing jacks, in return for feeding from the same glassfish colony.

Silhouette of diver behind school of glass fish

Diver in wreck with glass fish school

Glass fish in cave (Parapriacanthus guentheri), large school of fish in cavern mouth, looking out to clear blue sea in background, Red Sea.

Silhouette of diver behind school of glass fish

sometimes known as glassfish for their transparency, accumulating often around the same coral pinnacle or sometimes cave by day and dispersing to feed at night.Red Sea.

Superstructure of Kuda Giri Wreck, South Male Atoll, Maldives

Lionfish and Diver, Pterois miles, Maya Thila, North Ari Atoll, Maldives

Scuba Diver and Pygmy Sweeper, Parapriacanthus ransonneti, Raja Ampat, West Papua, Indonesia

Superstructure of Kuda Giri Wreck, South Male Atoll, Maldives

Diver and Lionfish, Pterois miles, Maya Thila, North Ari Atoll, Maldives

Variable thorny oyster (Spondylus varius) in the half-light of a cavity teeming with glassfish. Mayotte