Monomorium cekalovici

Monomorium cekalovici pairs quick, multi-queen growth with very little fuss, which is a rare and welcome combination in a small ant. Running several queens means the colony builds numbers steadily and carries on even if one queen is lost, so it stays resilient while you learn. It comes from Chile in South America and settles into moderate warmth and humidity without complaint. The workers are large enough to follow easily as they forage, making it an approachable and rewarding first colony of this kind.

A small omnivore. The workers keep the colony fuelled on sugars and carry small insect prey back for the larvae, so an always-available sugar source with protein a few times a week suits them well.

★★★ readily · ★★ moderately · ★ occasionally · ✗ not eaten

Start the colony in a test tube and keep the closure tight, as small workers find any gap. When they cover the floor, transfer them to a humid plaster or acrylic nest with a close fit and a slightly drier arena. Upgrade and add modules as the colony fills its space. Apply a fluon (PTFE) barrier to the arena rim and refresh it now and then; oil or talc-and-water also hold. ANTonTOP formicaria and starter kits bring the nest, arena and escape barrier together as one set suited to a young, growing colony of this species.

A moderate setup suits it: nest 23-26 °C, arena 24-28 °C, with nest humidity at 55-70% and the arena at 40-60%. Warm one end only so the colony can settle in a warmer or cooler spot along the gradient. No winter rest is needed, so the ants stay active year-round on steady feeding.

As a polygyne species it builds numbers at a steady, reliable pace and can reach up to 30,000 workers. Your colony arrives as a fertilised queen with workers and brood, often with more than one queen.

• This is one of the South American Monomorium, a contrast to the better-known African and Asian tramp species of the genus.
• Multiple egg-laying queens give the colony a buffer if one queen fails.
• At around 2.5-3.5 mm, the workers are easier to follow on the foraging trail than the truly minute Monomorium.
• Like its relatives, it is an opportunist that takes whatever sugar and small prey it can find.

Is Monomorium cekalovici good for beginners?

Yes. It is rated Beginner and forgiving for a first small-species colony.

Does Monomorium cekalovici need a winter rest?

No, hibernation is not required. Keep it active year-round with steady feeding and stable temperatures.

Does this small Chilean ant sting or bite?

It has a sting and a mild bite, but it is harmless in practice.

How big can the colony get?

Up to 30,000 workers, helped by multiple queens.

How large is the queen?

The queen measures 5-6 mm and workers 2.5-3.5 mm.

How fast does it grow?

Steadily, since it is polygyne and warmth-loving.

What does Monomorium cekalovici eat?

Sugar water and nectar or jelly readily, plus small insects for brood; it does not take seeds.

How is it shipped and will it arrive alive?

It ships as a queen with workers and brood, with a heat or cool pack, dispatched within 24 h with tracking for a safe live arrival.

Escape prevention. Coat the inner rim of every open arena with fluon (PTFE), or use talc-and-water or an oil barrier as a backup, and keep a tight, fine-mesh lid on top. Check the barrier regularly, since dust, condensation and feeding debris break a fluon line over time. Keep tubing connectors tight and seal any gaps in the nest.

Keeping reminders. Always offer fresh water and never let the nest dry out completely. Give carbohydrates continuously and protein a few times a week, and remove uneaten insect prey within 24 hours before it moulds. Keep the formicarium out of direct sunlight and away from constant vibration, which stresses a young colony. A water-filled test tube plugged with cotton makes an ideal spare incubator whenever you need one.

Before you buy – do not rehouse too early. Have a test-tube setup or a small formicarium with an outworld and a working barrier ready before your colony arrives. A founding colony grows slowly at first, which is normal. Moving a small colony into a large nest too soon invites mould, mites and stress, and the workers die off one by one. Keep the colony in its open test tube on the arena, plug the nest entrance with cotton, and open up the next chambers only once the colony fills roughly 10-15% of the space.

What we ship. Every colony ships with a live-arrival guarantee, backed by our 24h unboxing-video guarantee: if the queen does not arrive alive, we reship free. Parcels travel with DHL, InPost (PL) or EMS, with a heat or cold pack to suit the season, packed discreetly and securely. We ship across the EU and worldwide, with free shipping over the Europe threshold.