i would reccoend using the ants canada method of hydration which uses mesh (which makes up portion of the nest floor), some sort of substrate underneath the mesh as well as an external watering reservoir. Btw, if you decide to make founding setups, i will buy them (depending on the price).
I am trying to not use mesh, thus raising the price. My plan is to make formicariums that are low cost but good quality, I've seen some ridiculous prices around here for formicariums, I also think it might scare some people away. By founding setup, do you mean claustural (might be misspelled) chambers? I recommend the test tube setup, but I could make multi-queen setups and I am working on an expandable nest that you can adjust the size depending on your colony's size.
Sorry, I did not see that you did not want to use mesh in your earlier post. Btw, by "founding setup", I am actually referring to setups built to house young - medium sized colonies. As you may be aware of, the use of a test tube setup is not always practical for all species of ants (Take for example, species of ants that spray formic acid when distressed.). These setups provide the user with the aesthetics and versatility of a formicarium, but with the practicality of one that is small and compact (Designs for these setups are often simple in nature in order to prevent the placement of midden piles within unused chambers in the nest.). Founding setups such as mini hearths (THA) have proven to increase the rate of growth in small colonies and colony health overall. With so many new members, the value of setups such as these has become a lot more apparent with time. I personally believe tat they are an essential tool for any beginner. Sadly, there are not a lot out their that are built to house young colonies and still have enough space / the correct conditions for them to continue to use the setup far into development (130-250 worker range or higher, depending on worker size). If you do decide to build on of these, I would recommend creating a formicarium with a simple interior, with maybe 2-3 chambers and small, easy to navigate tunnels connecting them together. The second picture looks perfect, but it would be awesome to see a design similar to the second picture, but with the organic and flowing design of the formicarium shown in the first picture.