Tips for Photographing Mandarinfish 

To take great photos of mandarinfish, use a macro lens suitable for your camera type, usually around 50-60mm for DSLR or mirrorless options. Set your camera to a shutter speed of 1/125 to 1/200 seconds, with an aperture between F/19 to F/22, starting at ISO 200. Before diving, find a good spot that avoids disturbing the fish. Use red light for minimal disruption and be patient to capture their mating, which lasts only a few seconds. Understanding their behavior and movements will help you take stunning shots.