Nemo is a young and adventurous clownfish who lives with his father, Marlin, in the Great Barrier Reef. After being captured by a diver, Nemo ends up in a dentist's fish tank in Sydney. His father embarks on a journey across the ocean to rescue him. Nemo's experiences teach him about self-reliance and bravery, while also strengthening the bond with his father. Nemo is a central character in 'Finding Nemo', representing themes of family, courage, and the importance of perseverance.