Description: The term ‘reef fish’ refers to a wide variety of fish species that inhabit coral reef ecosystems. These fish are fundamental to the health and balance of reefs, as they play crucial ecological roles such as controlling algae and maintaining coral health. Reef fish often display vibrant colors and distinctive patterns, which not only help them camouflage among the rich biodiversity of the reef but also play a role in communication and courtship. Some of the most well-known species include clownfish, parrotfish, and angelfish, each with unique adaptations that allow them to thrive in this complex environment. Coral reefs, where these fish reside, are considered one of the most biodiverse ecosystems on the planet, housing thousands of species of flora and fauna. The interdependence between reef fish and their habitat is vital, as the health of the reefs is directly related to the survival of these species. However, reefs face significant threats such as climate change, pollution, and overfishing, which jeopardize both reef fish and the ecosystems that sustain them.