Our newest ant housing just added to our range is this large twin stacked farm, (sizes are below) both top and bottom are made from clear plastic (not acrylic so there could be the odd manufacture mark it's just the process of making such boxes).
This is a twin stack so the nest will go in the bottom half and the top provides the area for the ants to hunt etc, they gain access to this area via a choice of connecting tubes.
The top simply lefts of the base if required, the top tank has a close fitting lid and a large metal mesh vent to provide a good air intake.
The side has a port which will allow further outworlds to be connected as & when required.
210mm H x 200mm Long x 100mm WIDE.
If you would prefer to make your own ant farms then these cases can be purchased as blanks (no ports or vents)