Origin Black 200×200 mm, variant A, is a partially gypsum-based formicarium designed for the staged housing of a growing ant colony. Its construction combines a black PETG body, transparent panels made from 3 mm cast acrylic, and a G-23 gypsum plate. The interior is organized into living sections, separate hydration zones, and a tall arena, allowing the available space to be introduced gradually.

Construction materials

The main body is made from PETG. In the source specification, this material is selected for its strength, moisture resistance, and lack of a pronounced odor. Transparent structural parts use 3 mm cast acrylic. Black nylon fasteners are used because they do not rust when exposed to the humid conditions associated with a formicarium.

A 6 mm plate of high-strength G-23 gypsum is installed beneath the living area. Its function is to distribute moisture through the nest. The higher-density gypsum is also intended to resist mechanical damage by ants, although the source does not establish complete immunity to chewing.

Dimensions and chamber clearance

The formicarium measures 200×200 mm. Its living chambers provide 15 mm of vertical clearance above the gypsum layer. This additional height is intended to accommodate large queens and soldiers that may have difficulty turning or moving comfortably in chambers only 6–9 mm high.

Camponotus japonicus and Camponotus fedtschenkoi are given as examples of larger species that can benefit from the chamber height. Messor and Camponotus are also mentioned in the original FAQ. These names illustrate the intended application rather than serving as a complete compatibility list.

Nest expansion in four stages

Removable dividers split the living area into four sections. When the colony is small, unused chambers can remain closed. As the population increases, dividers can be removed one at a time to provide more room without opening the entire nest prematurely.

This arrangement helps keep the inhabited area proportional to the current colony size. It also reduces the chance that ants will use excess, unoccupied chambers as refuse areas. Before another section is opened, the keeper should assess how fully the colony is using the space already available.

Independent hydration control

The system contains four independent hydration zones. Water can therefore be supplied to separate parts of the nest, creating a moisture gradient instead of treating the whole interior as a single area. Independent zones also reduce the risk of wetting every chamber at once. The amount and frequency of hydration must still be selected according to the species and the condition of the colony.

Arena and closure system

The arena is 80 mm high. A double acrylic lid is secured with sliding catches, providing a physical barrier while retaining access for feeding and maintenance. The source promotes this arrangement with an absolute escape-proof claim, but any enclosure should be inspected regularly. Its performance depends on correct assembly, lid position, joint condition, and the size of the ants being housed.

Functional components

• black PETG body;
• transparent 3 mm cast-acrylic elements;
• 6 mm G-23 gypsum plate;
• living chambers with 15 mm clearance above the gypsum;
• four sections separated by removable dividers;
• four independently hydrated zones;
• an arena with a height of 80 mm;
• a double acrylic lid secured by catches;
• black nylon fasteners.

Preparing the nest for a colony

The open nesting area should correspond to the size of the colony. A small family can begin with one restricted section, with the remaining areas introduced as its population develops. After adding water, check its distribution and make sure no area has become excessively wet. The lids and catches should be seated without visible gaps and inspected again after every maintenance session.

Frequently asked questions

What is the role of PETG in Origin Black?

PETG provides a rigid body suited to the humid operating conditions of a formicarium. Together with the acrylic panels, it forms a solid enclosure while preserving visibility into the internal areas.

Why are the chambers 15 mm high?

The increased clearance gives large queens and soldiers more vertical space. It is particularly relevant for ants that would be constrained in chambers measuring only 6–9 mm in height.

What does the G-23 gypsum plate do?

The dense gypsum component distributes moisture through the nesting area. Four separate hydration zones allow individual sections to be supplied with water, helping create different moisture conditions within the same formicarium.