So I bought a Nikon D80 for more than I can afford because I miss not having a camera. So I bought a Nikon D80 with a 18-135mm and a 75-300mm VR what do I need to take really cool pictures of my corals and fish. I know one thing for sure I need to pick up a good flash and a defuser. What else do I need to do, what other kinds of lenses and filters will I need.