Dogs aren't very common as pets in Indonesia. I saw many more feral cats than feral dogs.
Monkeys on Pulau Weh. (Macaques?) They have longish tails and white eyebrows. Accustomed to eating food thrown by visitors. If it is a macaque, I'm thinking Macaca fascicularis.
Clownfish and anemone
giant clam with urchins
a trio of cuttlefish. Small, medium, and big. The medium sized one kept trying to get between the other two. (alternative reproductive tactics?).
shoals of fish above coral
Goats! Goats everywhere.