You need to be careful that when feeding the frog it doesn't ingest any of the gravel as this causes a risk of impaction. Also you may need to change the water in the enclosure every day or two because these frogs produce a lot of waste as ammonia.

It pushes aside the pot pieces as this is an ambush predator that feels most comfortable when partially buried.

That said, your set-up is similar to how a lot of people kept them in the late 1980s and early 1990s....

Ed