That's a very nice looking tank.

However, for fire-bellied toads, I would suggest more water than what the dish would provide. My toads, my friend's toads, and the toads where I work at all spend most of their time in the water, or sitting on rocks and land area that is just slightly below the water line.

I think you have a fantastic set-up,but it might be a waste for fire-bellied toads.