Welcome,

Your frog looks healthy. But what kind of fish is that? If it is a Corydoras species then remove it cause the frog could try to eat it and choke in it.
Xenopus laevis normaly eat everything that moves, zo it´s kinda strange the fish is still alive.

I would remove the gravel and use sand.
And some wood and live plants to create hiding spaces. A filter with not to much flow in the tank.
The tank is too small I think for a Xenopus laevis. I don´t know if they need a friend, but I would defenetly add at least 1 frog.

I feed my frogs frozen bloodworms and earthworms.

(correct me I a wrote some spelling faults, I want to improve my english)