Formicarium Pearl S

If you keep a species that sulks in dry conditions, humidity stability is everything. Pearl S gives you the most even moisture of any small nest we make, in a compact, good-looking gypsum body that sits neatly on a shelf or desk. It is the small nest you choose when you want the climate handled for you.

Pearl S suits founding colonies and small, humidity-loving species that prefer steady damp conditions. Start a queen with her first workers here and let them settle into a stable, forgiving climate while they grow.

A young colony keeps a small nest cleaner and more humid than a large one. Pearl S is sized for exactly that early stage — and the sliding partition lets you keep the colony close at first, opening the arena as numbers build.

Fill the humidity chambers and the gypsum wicks moisture into the surrounding cells. With four chambers, the damp spreads more evenly than in a two-chamber nest, so the colony always finds the gradient it wants. Top up the water every few days; the stone does the rest.

Breathable gypsum plus light airflow keeps the nest fresh. Avoid over-watering and clear leftover food promptly. If a chamber looks too wet, leave one waterer empty for a day to rebalance.

The fitted lid and arena walls keep workers contained. For tiny or climbing species, a thin band of anti-escape fluid around the arena rim adds extra security.

Pearl S arrives clean and ready. Rinse the gypsum, let it take up water, connect a tube if you are joining an outworld, and it is ready to populate — no curing, no fuss.

Dress the integrated arena with a little sand, a stone or some moss to make a tidy foraging space and a display piece. Keep it light so feeding and cleaning stay easy.

Pair Pearl S with a drinking dish, protein and carbohydrate jelly, and soft tweezers for clean feeding. A tube connection lets you add an arena or link nests as the colony grows.

Gypsum is sturdy and easy to wipe down. Spot-clean the arena, refresh the water, and the nest looks after itself. Don’t force the latches while the colony is active.

When the colony outgrows Pearl S, connect a larger nest or an arena through a tube. The colony moves at its own pace and you avoid a stressful full relocation.

Shipped year-round with heat or cool packs and a live-arrival guarantee — DHL across the EU, InPost in Poland, EMS worldwide. Questions on set-up or species fit? The ANTonTOP team keeps ants too and is glad to help.

Humidity-loving ants often move their brood between damp and drier chambers through the day — with four humidity chambers, Pearl S lets them fine-tune that nursery climate exactly the way they would underground.

What makes Pearl S different from other small gypsum nests?
Four humidity chambers instead of two — more even, more reliable moisture.

Is it good for a founding queen?
Yes — it’s ideal for founding colonies and small humidity-loving species.

How often do I add water?
Usually every few days; top up the humidity chambers and let the gypsum spread it.

Can I expand later?
Yes — connect a bigger nest or arena by tube whenever the colony needs more room.

Buy your Formicarium Pearl S — a live-ready small gypsum nest — from ANTonTOP.