Tarpon just do that...nothing to do with your hands...just your light.I dunno..... I guess you could research it. I do know that when solo night diving in Bonaire right there on Bari Reef that there were instances where I'd light up a bright tang or wrasse in my video light and then out of nowhere a tarpon would swoop in lighting fast and devour it right in front of my face... Never had a "bite" personally......and my hands are a white contrast to my dark rashguard.......but just say'n...