Distinctive geometry for a growing colony

ANTMART Trigon Yellow Variant A is a 200×200 mm formicarium with a vivid yellow body and a network of triangular chambers. This layout creates a branched nesting area with numerous corners and clearly visible sections. The contrasting color makes it easier to follow worker activity, brood placement, and the organization of stores, while giving the enclosure a strong visual presence in the room.

Partial gypsum layout and moisture choice

The nest incorporates a 6 mm layer of high-strength G23 gypsum across part of its living area. Chamber height is 15 mm above the gypsum and 21 mm in the sections without it. Combining these two configurations creates both moistened and dry spaces, allowing the ants to distribute brood and stored food according to the conditions available in each part of the nest.

The living area is divided into 5 self-contained sections. Rather than giving a small colony access to the entire nest immediately, the keeper can connect additional triangular compartments as the family grows. Moisture is managed through 2 independent hydration zones, making it possible to maintain different conditions across the inhabited area.

Materials selected for a humid enclosure

The main structure is made from PETG, a moisture-resistant plastic designed to retain its geometry during the water exposure expected in normal use. White nylon bolts hold the assembly together. Nylon does not rust in a humid nest and therefore avoids the corrosion marks that metal fasteners can leave on gypsum.

Construction details:

• overall format: 200×200 mm;
• triangular nesting chambers;
• 5 sections for gradual expansion;
• 2 independent hydration zones;
• partial 6 mm G23 gypsum layer;
• 15 mm chamber height above gypsum;
• 21 mm chamber height in non-gypsum areas;
• 80 mm-high arena;
• PETG body with white nylon fasteners;
• automatic hydration connection for a 15 mm test tube.

Room for larger ants

The internal height makes this formicarium relevant to species with comparatively large queens and soldiers. The 15 mm gypsum chambers and 21 mm dry chambers give larger individuals space to move and turn. Camponotus maculatus subnudus is specifically cited as an example in the source material, alongside Camponotus japonicus and Myrmicaria brunnea.

A separate arena for feeding

An 80 mm-high arena provides a dedicated open area for feeding and routine cleaning. Food can be placed there without unnecessary disturbance of the nesting chambers. The arena is covered by a double acrylic lid. Its two layers help resist warping associated with changes in humidity, while mechanical sliders secure the lid in its closed position. As with any ant enclosure, the lid, joints, sliders, and escape barrier should still be inspected regularly.

Controlled expansion as the family develops

The sectional design is particularly useful when introducing a young colony. Unneeded compartments can remain closed until the ants occupy most of the space already available. Further triangular chambers are then opened in stages. This keeps the early nest area compact and makes it easier to observe how the colony uses its territory. Decisions about expansion should reflect worker numbers, brood volume, and occupancy of the active chambers.

Species compatibility

Variant A, with its partial gypsum lining, is listed for Camponotus nicobarensis, Camponotus pseudoirritans, Camponotus fedtschenkoi, Camponotus maculatus subnudus, and harvester ants. For harvesters, the combination of dry and moistened chambers allows seed stores to be positioned away from the hydration areas, while brood can be moved by the colony to its preferred microclimate. Hydration and feeding routines must always be adjusted to the biology of the particular species being kept.

Automatic hydration

The design supports an automatic hydration setup using a 15 mm test tube. This reduces the need for frequent manual watering but does not eliminate routine supervision. The water level, condition of the gypsum, and the ants’ distribution between chambers remain useful indicators when managing the enclosure.

Questions and answers

What is the purpose of triangular chambers?
They provide multiple corner niches that ants may use for compact placement of brood, the queen, or stores. The geometry also produces a distinctive nest pattern that is easy to observe through the cover.

Why are nylon bolts used instead of metal ones?
Steel fasteners can corrode when repeatedly exposed to humidity. Nylon does not rust and will not deposit metal oxidation products on the gypsum section.

Can this model house Messor ants?
Variant A is intended to be suitable for harvester ants. Its partial gypsum layout preserves dry chambers for seeds while providing separate moistened areas for brood. The exact moisture level and diet should be selected for the species and colony size.