Andaman sea, Satun, Thailand. A large school of Banana fusilier (Pterocaesio pisang) swims over the soft corals (Dendronephthya sp.), which dominate the reef of Hin Khao, two small pinnacles in the sea of Satun Thailand, known for biodiversity. Satuns nutrient-rich waters nurtures productive marine ecosystems, teeming with over 800 species of marine life.