Thanks. I like the design. Can you pop out the nest? Personally, I would want to add a sponge under the nest to have the nest be able to wick up water. I prefer my ants to have direct contact with water.
I wanted to say that ants may not need as much water as you think
I have a sealed starter acrylic nest with a small Melophorus colony in it.
And for the last 2 years they have had no access to direct water, and still going strong!
They must get water from the moisture that collects on the mesh that seals off the water sponge from them.