8 Chambers 9mm Connector 2 Humidity chambers designed and manufactured in the UK. The Size 8 nest is ideal for a colony up to several hundred?adult workers. It contains 8?chambers which are 4cm x 2cm in size. Our latest range of acrylic horizontal ant nests provide maximum nesting capacity in the smallest of space with the added benefits of a crystal clear view of your entire colony - great for taking photos! These nests come in a range of sizes and capacities to suit many ant species and budgets. Our?nest expansions system?uses our easy to use 'sawtooth' connectors which allow you to expand the capacity of your nest without the need for any tubing. A range of sawtooth connectors for various functions including queen excluders and outworld connectors will be available soon. Each nest has two?humidity chambers which provides a humidity gradient throughout the nest. On this nest the humidity chambers can be removed. Every nest includes a red acrylic nest cover, a short length of the appropriate sized tubing and a pipette for hydrating the nest. Our nests are available in a range of connector size options. In most cases you would want the 9mm connector which is the medium size.