Aphaenogaster geei

Size leads the story here. This is one of the bigger members of the genus, and its substantial workers form an impressive foraging column that is easy to trace across the arena. The keeping experience is refreshingly simple: this species is kept warm year-round with no hibernation, so there is no cold rest to schedule and no cool spot to find. Steady warmth is exactly what keeps the queen healthy and laying well all year. A handsome, easygoing ant for the intermediate keeper.

A scavenging omnivore with sizeable workers: these long-legged foragers comb the ground for insect prey and sweet food, taking sugars for fuel and carrying protein home for the brood. Keep a sugar source available and add insects regularly.

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

Begin in a test tube, then move to a ytong or acrylic nest as the colony builds toward several thousand workers. This is a warm-kept ant that needs no hibernation, so size the setup to carry larger numbers and a queen that lays hard year-round. Pair a humid nest with a roomy arena and seal the rim with fluon (PTFE), oil, or talc-and-water. ANTonTOP formicaria and starter kits offer a damp nest and generous outworld in one set, ready to take a sizeable colony through its annual cycle.

Hold the colony at 22-28 °C with humidity around 50-70%, warming one end so the ants can settle where the gradient suits them. This is a warm-kept tropical ant, so no winter rest is needed; keep it warm year-round and the queen stays healthy and lays strongly.

Growth is moderate and builds over time toward a sizeable colony of up to 5,000 workers, the larger workers making the foraging trails easy to follow. Your colony arrives as a queen with workers and brood, ready to move on into a bigger nest.

• Aphaenogaster are slender, long-legged ants celebrated for their speed, ranking among the quickest scavengers on the forest and grassland floor.
• The genus is an important natural seed disperser, ferrying off seeds tipped with a fatty elaiosome, eating that part and dropping the seed to germinate elsewhere.
• Many species show simple tool use with food, placing scraps of leaf or grit onto liquids to soak them up and carry them back to the nest.
• This is one of the bigger-bodied Aphaenogaster, native to eastern China and kept warm year-round in captivity with no dormant season.

Is this a good first ant?

It is rated Intermediate, suited to keepers past their first colony.

Does Aphaenogaster geei need a winter rest?

No. It is kept warm year-round with no hibernation.

Does this East Asian ant sting or bite?

Yes, it has a sting and a mild bite, but it is not aggressive.

How big can the colony get?

Up to 5,000 workers.

How large is the queen?

The queen measures 11-13 mm; workers are 5-9 mm.

How fast does an Aphaenogaster geei colony grow?

At a moderate, steady pace for the genus.

What does it eat?

Insects for protein, sugar water or nectar for carbs, plus seeds.

Will it arrive alive?

Yes, sent with a heat or cool pack, dispatched within 24 hours and tracked.

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.