I want to become a marine photographer do i get paid well?

Only if your good at it. It will take time and loads of hard work. Plus you have to have an "eye" for your photos. i would start practicing now in taking pictures. Take some cles on photography. No one can tell you an amount because that will all depend on who you work for, or for yourself..the quality of your work. Until you get very good at it, the pay will be minimal at best. But if this is something you like to do, then try it. But get an education in marine life first so you know what your doing. You can't just jump in the water and take pictures. you have to know your subjects and their habits.