This stand is scaled for mini plant pots as shown on the 3rd photo, the outer most diameter is about 65 mm with height of 40 mm. I placed 2 mini pots on the top and a small pudding cup of water on the base for humidity control inside my tortoise cabin. It also serves as a shelter for small tortoise.
If you do not need the water tank, I do recommend something heavy to be placed on the base. This is to ensure safety of the pet(s); in case if it'd knock it over by force.
Ultimaker 3 Extended
Print with one side of the model's wall directly on build plate. Support materials are only need for the openings.