Diver cleaning the tree branch from algeas. Maintenance of the tree structures is done regularly from the RRFB staff and volunteers. Both coral nurseries and restoration sites are monitored regularly for disease, predation, damege to nursery structures. The nurseries also receive regular cleaning in order to prevent the overgrowth of algae and fire coral. Coral Restoration Project on Bonaire Technical Details Camera: NIKON D810 Taken: January 30, 2014 Focal length: 10mm Aperture: f/1,024 Exposure: 1/250 second ISO: 80