Bigbelly Seahorse

Found singly, or in pairs, anchored by their tails, to algae and seaweeds, also around jetties and sponges, over shallow, sheltered reefs, and in tidepools, sometimes off-shore, attached to drifting seaweed rafts. This is one of the largest seahorses in the world.
They feed by sucking crustaceans and zooplankton into their mouths.
Southwest Pacific - Australia, New Zealand

Pipefishes and Seahorses are unique in that the male gives birth! The female deposits their eggs after fertilisation into the males pouch to incubate the eggs for one month before giving birth.
They attach to anything they can get their tail around, even each other usually close to the bottom to blend in with their surroundings.
Seahorses are a threatened species because it is sought after for Chinese medicine.