"You never know what you are going to find when you go on a black-water dive. One night it may be tiny larval fish, another a mako or silky shark, but mostly you are searching through the plankton for tiny creatures as you float along with the current over deep water. Persistence and concentration are the keys to success in finding your subject as you drift along. About 45 minutes into my 90-minute dive, I started to spot small clumps of sargassum floating by, always an exciting sight on a black-water dive. I found this seahorse in the third clump I investigated."