Paul Royle-Grimes, left, with Elevation Aerial Photography, and client Larry Salmen, with the Warren Lake Committee, use a drone Feb. 18 at Warren Lake in Fort Collins to photograph 18 aerators that were installed to improve water quality by reducing algae. (Michael Brian/mbrian@greeleytribune.com) Paul Royle-Grimes officially got his business, Elevation Aerial Photography, off the ground…