I thought about a mixed species vivarium/paludarium, but I mostly just want to have woodhouse's toads in it, maybe some fish in the water, with a filter. I just thought it looked so natural the way you set it up, with a few aquatic plants, logs, and a pond area for them, plus I want them to be able to breed. I figured with my Uncle's tank I can house 6-7 toads, maybe even 8, enough for a few pairs of toads.