The cute, curious clownfish lives in the sheltered reefs and lagoons of the Pacific and Indian Oceans, nestled among the poisonous tentacles of sea anemones, which protect the fish (which are immune to the poison) from would-be predators.
Mattias took this photograph during a trip with his two sons to Raja Ampat, an archipelago off the north-east coast of New Guinea, known for its incredible marine life.
The perfect place to explore the wonders of the reef, Mattias' youngest son was excited to meet a familiar friend during a snorkelling trip. Jumping out of the water, he exclaimed with joy: "I found him! This is where he is! I found Nemo!"
Photo courtesy of Mattias Klum