A few other things to keep in mind with African clawed frogs (Xenopus laevis). They are a temperate species so won't require a heater in their tank. The temperature in my tank during the winter gets down to about 68 F, and can get around 75-76F in the heat of summer, which is a bit too warm. A bare bottom tank or sand substrate is good. Aquarium gravel is not good as they can ingest gravel had become impacted. They will eat a variety of foods. It's best to avoid freeze-dried foods.