Shoal of Chromis over Reef, Chromis atripectoralis, Thaa Atoll, Maldives

branching corals branching coral scleractinia acropora acroporiddae stoney corals stone corals staghorn coral corals reef reefs coralreef coralreefs coral reef anthozoans anthozoa hardcorals hard coral antler coral antler corals black axil chromis chromis pomacentridae perciformes coralfish coralfishes coral fishes toyfish toy fish fishkeeping fish fishes sergantfishes fish fishes shoal school schooling swarm group groups indian ocean asia geography nature sea ocean sealife marine wildlife marine fauna underwater underwaterphoto underwaterpicture underwaterphotography underwaterworld shoal of chromis over reef chromis atripectoralis thaa atoll maldives horizontal rm