A great "tank" is one of those blue, plastic kiddie wading pools! I have used thses for years. They are very cheap, you can get a 60 -75 gallon one for about $10.00! The down side is the stores only sell them in the summer!
-----
0.1.0 ornate box turtle
1.0.0 eastern box turtle
1.0.0 Yellow belly slider
0.1.0 Red belly cooter
0.1.0 Australian shepard
1.11.0 chickens
1.0.0 Dutch(rabbit)
3.2.0 children (do I still count the married ones?)
1.0.0 husband