Greg worked for a large wholesaler of ornamental fishes before joining the faculty at the NC State College of Veterinary Medicine in 1993, where he is Professor of Aquatic, Wildlife, and Zoological Medicine. He is a diplomate of the American and European Colleges of Zoological Medicine. He’s authored or co-authored over 200 scientific articles, 30 book chapters, and edited or co-edited five veterinary textbooks. Roy worked for a large ornamental fish farm before joining the University of Florida IFAS Tropical Aquaculture Laboratory in 1996. As Professor and Extension Veterinarian, he provides outreach, research, and educational programs in disease diagnostics and health management. He has authored numerous articles and book chapters, co-founded the American Association of Fish Veterinarians, and hosts the Aquariumania podcast on PetLifeRadio.