The idyllic coral reefs/reefs/underwater havens of the Maldives are facing a grave/serious/dire threat/danger/risk from an invasive species/plant/weed known as Caulerpa taxifolia/Halodule uninervis/Sargassum muticum. https://junaidfkfv183976.aboutyoublog.com/46568598/maldivian-reefs-under-threat-from-invasive-weed