Hey dvd,
You could try to build a little ytongnest, which can be placed in the farmarea of an apartment (with a little wider "farm"). But you need the second glascube in your basin, because of the fact, that your Ants dig their own nest in the ground if it is too deep and wet. Further you can irrigate your nest with a straw and a watertank like a normal ytongnest. Ask Antstore if they could build an apartment with more space between the inner cube and the basin

greetings, Till