For sale is an 3ftx18inchx21inch aquarium. I customized it so that a turtle can bask and have a "nesting" site. Female turtles need to be able to lay their eggs safely or they can become eggbound which is dangerous for them. You can put sand or top soil in there or coco fiber or a mix whatever your individual desires. It's been used for a year.
The background alone cost 300$ and came from universal rocks. Its incredibly tough. This tank is perfect for musk , mud turtles.