Nest Types for Your Ants

Would you like to enter the fascinating world of ant keeping and are looking for the perfect nest for your colony? The choice of nest type depends heavily on the ant species and colony size – we'll show you the best options step by step.

Test Tube Nest for Your Start

If you're new to this, a test tube nest is the best way to start – it's super easy to set up, very affordable, and forgiving of small mistakes. Fill a test tube with sterile cotton and water, connect it to a small outworld, and your queen will immediately feel safe. The ants regulate the humidity themselves, mold rarely forms, and it fits on any desk. You save space and can experience the first workers up close until the colony reaches about 30–50 ants.

The nest is ideal for claustral founding species such as Lasius niger (your classic beginner's choice, robust and fast-growing), Lasius flavus, Camponotus ligniperda, or Formica fusca. These species require high humidity during the founding phase, without you needing to feed them.

bitte mach das nest viereckig

Plaster Nests

With plaster nests, you create a stable home with excellent humidity control – pour plaster into molds, let it dry, and cover it with glass. You shape chambers and tunnels exactly as your ants need them. The plaster stores water evenly through capillary action, is easy to work with, and lasts a long time – always use a separate water tank to avoid overwatering. This way, you can clearly see your brood chambers.

Plaster nests are perfect for humidity-loving species like Myrmica Rubra. Create the nests so that you have damp areas for larvae and eggs and dry areas for pupae and storage.

Ytong Nests

Ytong nests (also called autoclaved aerated concrete or AAC) are an absolute favorite among ant keepers who want a natural and versatile nest – you simply carve tunnels and chambers into the soft, porous stone with a Dremel or screwdriver. The big advantage: Ytong absorbs water capillarily and distributes it evenly, allowing you to effortlessly create dry zones, moist brood chambers, and transitional areas in one nest – perfect for species with varying humidity needs. The coarse pore structure provides excellent air circulation, minimizing mites and mold, and feels like a real substrate to the ants; you can cover it with acrylic or glass plates for optimal viewing.

Optimal for Central European species such as Lasius niger (forgives humidity fluctuations), Lasius emarginatus, Formica rufa, Camponotus vagus/herculeanus, or Formica fusca. These species enjoy digging in porous soils and benefit from the zones.

bitte kriere mir ein bild eines sand lehm nestes einer ameisenkolonie zwischen acrylglas. mache dafür die kammern sichtbar aber ohne aeisen

Soil nests and sand nests for your ants

Soil and sand nests are among the most original and widely used nest types for ants worldwide. A large proportion of all ant species live entirely or partially in the ground in nature. This nest type offers stable temperatures, protection from enemies, and flexible options for adapting to different environmental conditions. In ant keeping, soil and sand nests can be reproduced particularly naturally – however, they require a good understanding of humidity, ventilation, and substrate selection.

Earth Nests in the Formicarium

In ant husbandry, earth nests are usually implemented in the form of sand-loam mixtures or special substrates. These allow the ants to dig and individually design their nest – a major advantage over pre-formed nest shapes. For many keepers, this natural digging behavior is particularly fascinating to observe.

A balanced mixing ratio is important: pure sand is too unstable, pure soil tends to waterlogging. A mixture of sand and loam has proven effective, as it is both dimensionally stable and well-ventilated.

Humidity and Climate

A key aspect of earth and sand nests is controlled humidification. In nature, ants regulate humidity through the depth and location of the chambers. In the formicarium, this must be replicated by targeted humidification of individual nest areas. Nests that are too dry lead to brood loss, while substrates that are too wet promote mold and mites.

bitte machedie kammern konkreter sichbar

Cork and Wood Nests for Your Ants


In addition to soil and sand nests, many ant species in nature use wood, bark, or plant material as nesting sites. Forest and tree dwellers, in particular, dig their nests into rotten wood, under bark, or in dead plant parts. In ant keeping, these habitats are often replicated with cork or wood nests.

Ant Species Associated with Wood

Genera such as Camponotus, Crematogaster, Dolichoderus, or Tetraponera are typical inhabitants of wood structures. They nest in tree trunks, branches, or deadwood, using existing cavities or actively expanding them. These species usually prefer dry to slightly humid conditions and are sensitive to waterlogging.

Climate, Care, and Control

Cork and wood nests are relatively easy to care for, as long as the moisture management is correct. They should never be completely soaked. Instead, moderate humidity in the arena and local humidification of individual nest areas are recommended.

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