Sergeant Majors Swarming Artificial Reef Structure in Bali

A vertical wide-angle view captures a concrete artificial reef structure heavily encrusted with soft corals, hydroids, tunicates, and sponges in Bali. Schooling Indo-Pacific sergeant majors (Abudefduf vaigiensis) with bold black-and-yellow stripes dart around the pillars and archways of the artificial habitat. Bright natural lighting filters through the clear blue tropical water, bringing out the vibrant textures of the benthic colonizers against the blue ocean background. Ideal for reef restoration studies, eco-tourism promotion, marine biology textbooks, and professional underwater stock media.