This shot of a pygmy was taken with f/4.0.

Location: Lembeh Island, Indonesia

Martin Klein

A little yellow sea horse dwelling in an urban setting a mile from the ocean (60mm with 10x diopter and Sony Nex-5N).

Location: Blue Heron Bridge, South Florida

William Goodwin

A couple of seahorses.

Location: Capo Noli, Italy

Maurizio Pasi

A longnose seahorse.

Location: Chalkidiki, Greece

Nicholas Samaras

This red seahorse was discovered on a dive in Bonaire. The seahorse moved around slightly, but never detached from the coral. In this picture it is fully visible, but still looks very camera shy.
Location: Kallis Reef, Bonaire

Brianna Korb

A male hippocampus guttulatus.

Location: Spiaggia Caterina, Italy

Marco Gargiulo

This shot of a White's seahorse was taken along the shark net on Manly Harbour Beach.

Location: Sydney, Australia

Michael Gallagher

A thorny seahorse faces the photographer head-on in this iconic photo, a rare sight for these shy creatures.

Location: Puerto Galera, Philippines

Goos Van Der Heide

A common seahorse in front of squid eggs.

Location: Ambon, Indonesia

Goos Van Der Heide

One of the few pygmy sea horses left around Mabul island in Malaysia, this one was obviously in a good mood, as it looks as if it is whistling its favorite song.
Location: Mabul, Malaysia

Jan Wegner

A seahorse feeding in the current under a peacock worm.

Location: Giglio Isle, Italy

Filippo Borghi

A yellow pygmy seahorse on his yellow gorgonian.

Location: Philippines

Raffaele Livornese