Ant Keeping Equipment You Actually Need

Ant keeping can turn into an equipment-heavy hobby fast. Nests, outworlds, feeders, heating cables, thermostats, magnifying lenses, escape barriers, tweezers, syringes, hydration systems, blackout covers, connectors — browse for an hour and it looks like you need half a laboratory before you're allowed your first queen.

You don't. For many species, especially during founding, what you actually need is surprisingly simple. The trick is telling apart essential equipment, equipment you'll probably need later, useful extras, and things you don't need yet at all. Buying too early can genuinely make the hobby harder rather than easier.

What Do You Actually Need to Start?

For a typical newly caught claustral queen, the basic setup is about as simple as it gets: a suitable test tube, clean water, cotton wool, somewhere stable to keep the tube, and patience. That's essentially the whole list. Test-tube founding setups have been used by hobbyists and researchers alike for decades, because they give the queen both a small nesting chamber and a protected water reservoir at the same time.

You don't need a large nest, a large outworld, elaborate heating, automated feeders, expensive tools, decorative substrate, or a shelf of supplements yet. What the colony needs changes as it grows, and your equipment should change with it.

1. Test Tubes

If I could only own one piece of ant-keeping equipment, it would be a test tube. A traditional setup holds water at one end behind cotton, with the queen in the dry chamber on the other side and a second cotton plug closing the entrance. That gives her drinking water, humidity, a confined nesting chamber, ventilation through the cotton, and protection from escaping. Simple, cheap, and effective — and not just a hobby habit, since researchers routinely maintain founding colonies in exactly this kind of setup too.

There's no single correct tube diameter for every species — a small Lasius queen and a large Camponotus queen obviously don't need the same amount of room. Tubes around 16mm outside diameter are widely used for common European beginner species, with larger tubes suiting larger species. What matters is that the queen can turn and manage her brood without rattling around an unnecessarily large empty chamber.

2. Cotton Wool

You'll need it for any traditional test-tube setup — one plug separates the queen from the water reservoir, another closes the open end. It sounds trivial, but it's doing several jobs at once: holding the water back, giving access to moisture, allowing airflow, and preventing escape. Keep spares around — it's cheap and gets used constantly once you have more than one colony.

3. Water

Access to water is one of the genuine essentials. A colony copes with an interruption in feeding far better than it copes with prolonged dehydration. You might provide it through the founding tube, a hydrated nest, a water feeder, a second water-filled tube, or another species-appropriate system. As colonies grow, I like some redundancy — if the main nest provides humidity, that doesn't necessarily mean it should be the colony's only source of drinking water.

4. A Small Bottle, Pipette or Syringe

Cheap, and makes life considerably easier. You'll regularly need to move tiny amounts of water, for topping up hydration systems, filling water feeders, preparing tubes, placing small droplets of sugar solution, or cleaning small areas. Precision matters with ants — pouring from a drinking glass into a tiny reservoir rarely ends well. You don't need laboratory kit, just something that lets you control exactly where the water goes.

5. A Carbohydrate Source

Once workers are present, most commonly kept ants need regular carbohydrates, since adult workers rely heavily on sugars for energy. Sugar water, honey water, commercial ant carbohydrate feeds and nectar substitutes are all common options, and keepers use different concentrations depending on preference. What matters is providing a safe energy source without a drowning hazard or a sticky mess left in the setup — small portions are usually all that's needed.

6. A Protein Source

Growing colonies need protein too, especially once larvae are present. For most insect-eating species that means appropriately prepared feeder insects — fruit flies, mealworms, crickets, roaches, flies. The right choice depends on the species; a seed-harvesting Messor colony has very different feeding behaviour from an insect-hunting Camponotus one. That's why researching the species matters more than buying a generic packet labelled "ant food."

You don't need live feeders. Pre-killed or freshly killed insects provide the protein without the risk of prey injuring workers inside a confined enclosure, and they're also easier to control.

7. Feeding Dishes

You can put food straight into an outworld, but a small dish makes cleanup far easier — instead of scraping dried sugar or insect remains off the floor, you just remove the dish and clean it. For a small colony, keep the dish small too. A huge bowl of sugar water helps nobody just because the colony might eventually be huge. Good feeding kit should make small portions easy to offer.

If a dish would simplify cleanup, our small ant feeding dishes are one option. They're useful once you actually need to offer food, not another item a fully claustral queen needs on day one.

What About a Founding Queen?

This is where beginners tend to overbuy. A fully claustral queen may need no feeding at all during founding — she raises her first workers from stored body reserves, and feeding starts once they arrive. It's part of why the test-tube method works so well: the queen stays in a small, stable environment rather than being dropped into a complicated nest straight away, which is exactly the approach used both in the hobby and in laboratory practice.

Semi-claustral species are different — these queens normally forage during founding and need access to food from day one. Know which kind you've got before deciding how to care for her.

8. An Outworld

The outworld is simply where the ants forage — the captive equivalent of the world outside the nest. You'll use it for feeding, water, waste disposal, observation and general maintenance, but you don't necessarily need one immediately. A founding queen in a sealed tube has no use for a large outworld. Once workers arrive and regular feeding begins, though, it quickly becomes one of the most useful parts of the whole setup. A simple approach for a young colony is connecting the test tube to a small container and letting workers forage outside the tube — a basic arrangement that's commonly recommended for exactly this reason.

When feeding becomes awkward, you could use a compact Founding Pod or Mini Outworld, provided the species and worker size suit the enclosure. The original test tube can remain the nest.

9. An Escape Barrier

Once ants are using an open outworld, escape prevention matters. Depending on the enclosure and species, that might mean a secure lid, very fine ventilation mesh, a PTFE-style barrier, or another suitable physical barrier. Not every barrier suits every species — tiny workers exploit gaps that look completely insignificant to us, large ants can simply reach across narrow barriers, and some species climb exceptionally well. Good enclosure design should come first, with an escape barrier as backup, not a substitute for a badly fitting enclosure.

Species suitability matters: A barrier that works for one ant may not work for another. Very small and escape-prone species need a carefully fitted enclosure with suitable ventilation and regularly checked connections. For medically significant or powerfully stinging ants, including Myrmecia, use housing specifically assessed for their containment and safety risks rather than relying on standard hobby equipment or a barrier alone.

10. A Nest — Eventually

Notice how far down the list this is. A newly caught queen usually doesn't need a full nest, and a tiny colony often doesn't either — moving ants into a formicarium too early is one of the most common beginner mistakes. An oversized nest can leave ants using spare chambers as rubbish tips, leaving food in inaccessible corners, becoming harder to monitor, occupying unsuitable moisture zones, and generally becoming harder to feed and manage. A test tube is already a nest. There's no prize for moving into a formicarium quickly — upgrade when the colony genuinely benefits from the extra space.

How large should the nest be?

There's no universal worker-count formula, since species differ enormously — twenty tiny workers might occupy almost no space, while twenty large Camponotus workers can fill a surprisingly large chamber. Rather than fixating on numbers, watch how the colony uses its current space. Signs an upgrade might help: feeding is getting difficult because workers crowd the entrance, brood and workers occupy most of the available area, waste management is struggling, the water reservoir is failing, or the colony keeps making full use of any connected space you add. More space should solve a problem, not create one.

11. Blackout Covers

Not essential, but genuinely useful. New queens and young colonies generally prefer secure, enclosed conditions, and a removable blackout cover gives you darkness while keeping the ability to check in whenever you need. Card, foil, cloth, paper or a purpose-made cover all do the job — it doesn't need to be expensive, and researchers have used nothing more sophisticated than foil to darken test tubes. The bigger lesson is that seeing through a nest doesn't mean the colony should be constantly exposed.

12. Red Covers

Red acrylic is commonly used to dim the light reaching the ants while still letting you see in, but it's not an invisibility cloak. Different species have different visual capabilities, and "ants can't see red" is too simple a rule to rely on. Think of a red cover as a viewing aid rather than true darkness — if a colony's particularly light-sensitive, proper darkness is still the safer option.

13. Tweezers

Useful surprisingly fast — not for handling ants, but for maintenance. Removing feeder remains, retrieving rubbish, positioning food, moving cotton, cleaning awkward corners. Long tweezers earn their keep once the outworld grows, because retrieving a cricket leg from among fifty irritated workers with your fingers is not an experience worth repeating.

14. A Small Paintbrush

One of my favourite cheap tools. A soft brush lets you gently guide ants during maintenance or transfers without trying to grab them, and it's especially useful with small species, giving far more control than fingers or tweezers. You might barely touch it for months, and then be very glad you own one.

15. Spare Test Tubes

Don't buy one. Buy several. Sooner or later a tube will dry out, one will get badly soiled, you'll catch another queen, you'll need an extra water source, you'll need to offer a replacement, or you'll simply drop one. Spares are cheap and take up almost no space — one of the few things I'd actively tell a beginner to buy more of than they currently think they need.

Do You Need Heating?

Maybe. It depends entirely on species, room temperature, season, colony stage, whether the species needs diapause, and what temperature your heating method actually produces. A native species in a normally heated UK home has very different needs from a tropical species whose development slows right down at typical British room temperature. Don't buy a heat cable because someone else's setup has one — establish your species' requirements, check your actual room temperature, and only then decide whether extra heat is needed.

If you do heat ants

The equipment is more than just the heater. Know the actual temperature you're producing, which usually means a reliable thermometer, a thermostat where appropriate, temperature probes, and careful positioning. Heating only part of the setup lets the colony choose between warmer and cooler areas — heating the whole enclosure removes that choice.

Do you need a thermometer?

If you're actively heating a colony, I'd treat temperature monitoring as close to essential — without measuring it, you're guessing, and a room thermostat isn't enough, since the surface right above a heat cable can run considerably warmer than the room around it. If you're not adding heat and the species is happy at normal room conditions, continuous monitoring matters less, though it's still useful to have.

Do you need a hygrometer?

Usually not inside a small nest. Tiny consumer sensors measure the air near the sensor, which doesn't necessarily tell you the moisture level inside the material where the ants and brood actually sit. Watching the hydration reservoir, the damp area, condensation, brood placement and colony behaviour is generally more useful than chasing an exact relative-humidity figure. There are situations where humidity monitoring genuinely helps — it just isn't compulsory equipment for every keeper.

Do you need a thermostat?

If your heating setup can push temperatures well above what's safe for your species, yes, temperature control matters a lot more. A thermostat prevents uncontrolled heating, especially where room temperature swings through the day. But don't solve a problem you don't have — a colony sitting happily at room temperature doesn't need a thermostat just because it looked good in someone's video.

Do You Need a Magnifying Glass or Microscope?

No, but they're fun. A cheap lens makes it easier to see eggs, larvae, mites, small workers and the physical differences between them, and a USB microscope or macro lens takes that further still. These are observation tools, not life-support equipment — buy them because you want to see more, not because you think the ants need you to.

Do You Need Substrate?

Not necessarily. A clean outworld floor works perfectly well, and it has real advantages. Substrate can look better and give the ants something to interact with, but it also makes cleaning harder — it hides waste, absorbs spilled sugar, blocks small feeding dishes, gives ants material to pile against escape barriers, and makes tiny species harder to see. Naturalistic and minimal setups can both be excellent. The ants don't care whether your enclosure matches the living room.

Do You Need Decorations?

No. Rocks, artificial plants, branches and similar things are mainly for us, and there's nothing wrong with that — part of the enjoyment is building something attractive. Just make sure decoration doesn't get in the way of access, cleaning, visibility, escape prevention or ventilation. A beautiful outworld you can't maintain isn't actually a good outworld.

Do You Need Expensive Equipment?

No. Specialist kit can offer better visibility, modular expansion, easier feeding, more controlled hydration, better escape prevention and a cleaner look, but none of that changes the ants' basic biology. A queen doesn't know whether her test tube cost 40p or £4, and a colony doesn't care if its water feeder has a logo on it. Before buying anything, ask whether it actually solves a problem.

What I Would Buy for My First Queen

For a beginner starting with a common claustral species, my list would be short.

Essential: several test tubes, cotton wool, water, a small pipette or needle-tip bottle. That's enough to establish the queen.

Once workers arrive: carbohydrate food, an appropriate protein source, a small feeding dish, a small outworld or founding setup, suitable escape prevention.

As the colony grows: a correctly sized formicarium, additional water feeders, longer tweezers, blackout or viewing covers, expansion connectors, a larger outworld.

Only if the species requires it: heating cable or heat mat, thermostat, temperature probes, specialist nesting conditions.

Completely optional: microscope, macro camera, decorative substrate, naturalistic scenery, elaborate monitoring or automation.

Once a colony really needs a dedicated nest, you can compare suitable sizes in our modular ant nests collection. There's no need to buy that stage of the setup in advance.

The Best Equipment Is Usually the Equipment You Need Now

One of the easiest ways to waste money in this hobby is buying for the colony you hope to have in three years. You catch one queen, then buy a huge nest, a huge outworld, heating equipment, feeding kit, expansion modules and specialist accessories — and the queen is still sitting quietly in a test tube.

Colonies grow gradually. Your setup can too. Start simple, learn the colony, learn the species, and add equipment when it solves an actual problem. You'll probably spend less, your setup will probably be easier to manage, and the ants will get the space and conditions they actually need rather than the equipment we were excited to buy.

Related reading: How to Set Up a Queen Ant Test Tube · Ant Keeping for Beginners.