The Yellow single-chamber mini module is compact starter housing for a queen or a small ant colony. Its defining feature is a partial G23 gypsum insert: one half of the chamber provides a moisture-bearing surface, while the other remains plastic and comparatively dry. An integrated micro-arena separates feeding and cleaning from the nest.

One chamber with two functional areas

The 10 mm gypsum layer covers half of the single living chamber. This gives the ants access to both a humidified surface and dry plastic within the same nest. Larvae may be placed near the moist area, while pupae and food stores can be kept on the drier section.

The layout is intended for less moisture-demanding species that require access to humidity but also benefit from an area without gypsum. It differs from solid-gypsum modules, where the moisture-bearing base extends across the entire living space. The chosen nest should always be matched to the needs of the species rather than selected by colony size alone.

A moisture gradient that must be monitored

Partial coverage creates a difference between the two sections, but the actual moisture level depends on the quantity of water supplied and the surrounding conditions. Repeated overwatering can still cause mould to develop on the gypsum. The insert should be inspected regularly, with excess water and food contamination avoided.

A dry plastic half does not eliminate the need for observation. The position of the brood and stored food can show which area the colony currently prefers, but species-specific care requirements must still be considered separately.

Feeding on a dedicated micro-arena

A traditional tube incubator normally holds its water reserve behind cotton. Changes in room temperature can create condensation on the glass, while permanently damp cotton may darken and become mouldy over time. Offering syrup or protein food also requires access close to the queen, giving active workers an opportunity to approach the opening.

This module provides its own micro-arena for food and routine maintenance. Suitable food can be placed there, foraging can be observed, and leftovers can be removed without opening the living chamber itself. The arrangement is particularly convenient when syrup or insect-based protein must be supplied regularly. Grain can be easier to offer to steppe harvester ants even in a tube, but a separate arena still provides more working space.

Body materials and fastening system

The housing combines yellow PETG plastic with 3 mm transparent acrylic. The clear panel provides a view of the chamber, allowing the queen, workers, and brood to be observed without dismantling the nest. The main components are joined with metal bolts, while nylon bolts are used on the micro-arena.

Retaining sliders are fitted to the lid. They help keep it in position during feeding, cleaning, accidental overturning, or transport. This is a practical safeguard against unintended opening, but the sliders, fasteners, and joints should be checked before every move. The presence of closures does not replace careful handling.

Technical details

• Overall size: 50х180 mm.
• Living area: one chamber.
• Clearance above the gypsum: 15 mm.
• Height without gypsum: 25 mm.
• Gypsum insert: G23, 10 mm thick, covering half of the chamber.
• Body materials: 3 mm transparent acrylic and yellow PETG plastic.
• Fasteners: metal bolts, with nylon bolts on the arena.
• Closure: a lid with retaining sliders.
• Service area: an integrated micro-arena.

Starter housing and later expansion

The module is intended for the temporary care of a queen and an early-stage colony. The single chamber provides compact nest space, while the arena creates a separate location for food. As the worker population grows, the available nesting and foraging area will eventually become insufficient. The family can then be transferred to a larger partially gypsum or full-gypsum farm suited to the species.

Before use, the fasteners should be inspected, the gypsum insert prepared, and a moderate moisture routine selected. During occupancy, food remains should be removed from the arena and the condition of both chamber sections should be checked regularly.

Frequently asked questions

Why is only half of the chamber covered with gypsum?

Partial coverage combines a moisture-bearing area with a drier plastic section. The colony can distribute brood and stored food between the two zones according to its current requirements.

How should humidity be controlled?

Regularly check moisture levels in this model’s gypsum insert. Add water to the partial G23 gypsum insert gradually, checking both the moist and dry zones.

Must the nest be opened for feeding?

No. Routine feeding takes place on the micro-arena, so suitable syrup, protein, or other species-appropriate food can be offered without opening the living chamber.

Can the ants be transported in the module?

The lid sliders help prevent unintended opening during movement. Their position, the bolts, and all other connections should be inspected before transport.

When should the colony be moved?

Transfer is needed when the single chamber and small arena no longer provide enough space. The replacement farm should be chosen for both colony size and the humidity requirements of the species.