This question is commonly asked. It is not something that has an easy answer however. I have some rather expensive camera equipment and can use it rather well but still have problems taking tank photos. The easiest way to take a photo of a tank is to have a good zoom lens on an SLR type 35mm not the point and shoot. You have to keep in mind the on camera flash is not normally a good flash. You will need a flash that can be angled different directions including straight up, behind you, and left or right. I suggest some of the following as well: Bounce kit with difuser, off camera hot shoe cord, Polarizing filter, between 70 to up to 200mm zoom capable lens, 50mm lens, highest quality close up filter you can afford (allows you to use zoom lenses closer to the tank with a smaller depth of field this can minimize glare from flash by allowing you to place flash closer to the tank using cord away from direct light reflection angles)