20 gallon aquarium or similar container (a 10 gallon tank is too small!!)
Some kind of filtration. An aquarium heater to heat water to about 82F, depending on turtle.
A lamp, with a 40-60W incandescent light bulb, installed to warm basking/land area to 85-90 degrees.
A UVB producing fluorescent light or supplementation.
Land area, built from bricks, rocks, wooden boards, rocks, where turtle can easily climb out.
A large heated aquarium with a swimming area at least as deep as the turtle is wide (so it can flip back over if it fall upside down). Add a rock or shelf which will allow the turtle to completely get out of the water. Add a heat lamp (most commonly a shop lamp with a 60W incandescent light bulb) above the basking area and a fluorescent light fixture with a UVB producing bulb to replace sunlight. (Setting the tank under a window will not do, because that light is filtered.) For more information, e-mail me at runner1881@home.com.
Setting up a turtle tank isnt always very easy. Below is a list of the things you will need for a very basic setup. Setups can be very costly, and if you are seriouse about owning a turtle then you should try to put together the nicest habitat possible. This picture was taken from a manufacturer which makes specialized turtle tanks. Do not think that you have to get this particular tank setup. It is expensive, and you can buy traditional glass aquariums and use them exactly the same way.