What kind of container should I use for baby chicks?

[Martiver4]

I used a tub from tractor supply cost about 40.00.
It's the one you can use for a pond as it's portable since I keep them outside plus it's spacious to put the heater.
On top I use window [tella] not sure English for it. But the mesh that goes on the window is what I have on top.
Since I plan to make a pond hopefully lol it has dual usage