The Complete Life Cycle of Discoid Roaches: A Breeder's Field Guide

I've spent years running feeder colonies, and the question I get more than almost any other is some version of "why isn't my discoid colony doing anything?" Nearly every time, the real answer is that the keeper doesn't actually understand the life cycle they're trying to run. They're waiting for eggs that never appear on the surface, harvesting the wrong stage, or panicking at week six when the colony is doing exactly what a discoid colony is supposed to do at week six — which is to look like nothing is happening while a great deal is happening inside the females.

So this is the whole life cycle, start to finish, told the way it actually matters to someone keeping a colony rather than someone writing a biology exam. I'll walk through gestation and live birth, the nymph instars and what each molt means, how to sex them, what adulthood and reproduction look like, and the environmental drivers that speed the whole thing up or grind it to a halt. Along the way I'll flag the points where the standard internet care sheets get it wrong, because a couple of those errors cost beginners entire colonies.

If you want the husbandry build — the bin, the heat mat, the humidity, the harvesting rhythm — that lives in my companion piece, the complete discoid roach keeping and breeding playbook. This guide is about the animal and its cycle: what's happening, when, and why, so the husbandry decisions actually make sense to you instead of being rules you follow on faith.

What a discoid roach is, in one paragraph

The discoid roach, Blaberus discoidalis, is a medium-large tropical cockroach native to Central and South America and the Caribbean, in the family Blaberidae — the same broad group as the dubia roach. Adults run roughly 1.5 to 2 inches (about 40–50 mm) long, with a flat, oval, glossy body in tan-to-brown tones and a darker patch on the pronotum (the shield behind the head). They're nocturnal decomposers: in the wild they live on warm, humid forest floors eating decaying leaves, fallen fruit, and the occasional bit of carrion. Two traits make them ideal feeders — they can't climb smooth vertical surfaces and they don't fly in any practical sense (males have full wings and can manage a clumsy flutter-glide at most, females even less) — which is why they stay in the bin instead of colonizing your house. Everything in this guide flows from that one-paragraph picture.

One quick myth to kill up front, because a popular version of this article repeats it: discoids are sometimes described as reaching "2 to 3 inches." They don't. A genuinely large female tops out around 2 inches. If you're seeing a roach noticeably bigger than that, you're probably looking at a different Blaberus species (the so-called "giant cave roach," B. giganteus, is a different animal). For B. discoidalis, two inches is the ceiling.

The big picture: three stages, no pupa

Discoid roaches develop by incomplete metamorphosis (hemimetabolism). That's the first thing to internalize, because it shapes everything else. Unlike a beetle or a fly — which goes egg → larva → pupa → radically different adult — a roach has no larval or pupal stage. It goes:

1. ◆Egg (developing inside the female, in an ootheca she carries internally)
2. ◆Nymph (a small, wingless version of the adult that molts its way up over several months)
3. ◆Adult (winged, sexually mature, the reproducing stage)

A newborn discoid nymph already looks like a miniature adult — same body plan, same legs, same antennae — just smaller, paler, softer, and wingless. It doesn't transform into something alien along the way; it just gets bigger and darker with each molt and grows its wings at the very end. This is why you'll see roaches of every size living together in a healthy colony: those aren't different life forms, they're the same animal at different points on one continuous ramp.

The second thing to internalize is ovoviviparity, and it's the single most important fact about breeding discoids. Most people picture a cockroach dropping a little brown bean-shaped egg case and walking away — that's what German and American cockroaches do, depositing their ootheca externally. Discoids don't. The female forms an ootheca but retains it inside her body, in a structure called the brood sac, for the entire incubation. The eggs develop in there, protected and climate-controlled, and then she gives live birth to fully formed nymphs.

For a breeder that's enormous. It means:

• ◆There is no exposed egg case to dry out, mold over, get eaten, or get accidentally tossed during a cleanout.
• ◆You will rarely if ever see an ootheca, so don't go looking for eggs as a sign of breeding. The sign of breeding is tiny new nymphs appearing.
• ◆Cold and dry spells don't kill a clutch — they stall the mother. That's recoverable. A cricket keeper who lets the bin dry out loses the eggs; a discoid keeper who lets the bin get cold just loses time.

With that frame set, let's walk each stage in detail.

Stage one: the egg and the ootheca

What the ootheca actually is

After mating (more on that later), a female discoid produces an ootheca — a tough, capsule-shaped egg case formed from a protein-rich secretion of her reproductive glands. Inside it, the eggs are lined up in a neat double row, each one supplied with a yolk that feeds the developing embryo. The casing hardens into a durable but slightly flexible shell whose whole job is protection: it shields the embryos from drying out, from microbes, and from physical damage.

The ootheca isn't sealed airtight, though. It's vented by microscopic pores that let oxygen in and carbon dioxide out, so the embryos can breathe through the wall. That detail matters because it's why humidity and airflow around the female still influence egg development even though the eggs are tucked inside her — the system isn't hermetic.

The internal incubation that defines the species

Here's the part that separates discoids from the roaches people fear. Within a day or so of forming the ootheca, the female rotates it back into her brood sac and carries it internally for the whole development period, rather than gluing it to a surface and abandoning it. You might catch a brief glimpse of the pale ootheca protruding from her abdomen right after she forms it, before she draws it in — that's the only time you're likely to see it at all.

This internal incubation is a form of low-key maternal investment. The mother gives the embryos a stable temperature and humidity (her own body buffers the swings of the bin), constant protection from predators, and a controlled environment for the delicate work of building an animal — segmentation, organ formation, pigment. The payoff is a dramatically higher survival rate than externally-deposited eggs get. It's also exactly why a discoid colony is so forgiving: the most vulnerable life stage spends its entire duration inside a mobile, self-regulating, defended capsule — the mother.

How long incubation takes — and getting the number right

This is where the source material I see floating around contradicts itself badly. One paragraph says 30–40 days, another says 28–35, another says 40–60. So let me give you the honest version: discoid gestation typically runs somewhere in the range of about 7 to 9 weeks — roughly 50 to 65 days — under good warm conditions, and longer when it's cool. Different colonies and sources land at somewhat different numbers because the duration genuinely isn't fixed — it's a function of temperature, with warmer mothers gestating faster and cooler mothers slower.

Don't fixate on a precise day count. The useful mental model is: warm female, faster cycle; cool female, slower cycle; cold female, near-stopped cycle. If you're holding the warm zone in the mid-80s to 90°F, broods come along briskly and a mature female can turn out a new batch every month or two. Let the bin sag into the low 70s and gestation drags out, broods space way apart, and the colony appears to "stop" — when really it's just running in slow motion.

Environmental drivers on the eggs

Three things govern how well — and how fast — the eggs inside the female develop:

• ◆Temperature. This is the master dial. Optimal embryonic development happens roughly in the 85–90°F (29–32°C) band. Drop below about 75°F and development slows markedly; sit in the 60s and it can effectively arrest. Push much above the mid-90s and you start cooking embryos rather than incubating them. Warm but not scorching is the target.
• ◆Humidity. Aim for about 60–70% relative humidity around the colony. Too dry and you risk dehydration stress on the gravid females and their developing broods; too wet and you invite mold, grain mites, and bacterial problems. "Tropical morning," not "swamp."
• ◆The mother's nutrition. This one's underrated. An ootheca is built from protein, and so are the yolks feeding the embryos. A female on a poor, low-protein diet produces fewer and weaker eggs, or malformed and non-viable ones. A well-fed female on a solid protein base plus rotated produce makes more nymphs, healthier. You feed the babies by feeding the mother — there's no separate step for the eggs, because they're inside her, living off what she eats.

Stress is the silent fourth factor. A female who's overcrowded, constantly disturbed, or rummaged through every day can reabsorb or abort a brood. Gravid females want to be left alone in the dark and warm. The less you fuss with a productive colony, the more it produces.

Stage two: the nymph — where the months go

Birth and the first hours

When the eggs finish developing, the female gives birth to a batch of live nymphs — typically on the order of 20 to 35 per brood, though this varies with the female's size, age, and condition. They emerge as fully formed, miniature, wingless discoids: pale, almost whitish at first, and soft-bodied. Within hours their cuticle darkens and firms up, and they scatter into the egg flats and substrate to hide. From this moment on, nobody's taking care of them — discoids give zero post-birth parental care. The nymphs are independent scavengers from minute one. That's fine, because the colony itself is their nursery: dark hiding space, ambient warmth and humidity, and food everywhere.

A single mature female cranking out a brood every month or two adds up fast. Do the arithmetic — 20–35 nymphs, several times a year, across dozens of females — and you see how a starter colony that looks like it's "doing nothing" for the first few months is actually loading the spring. The population curve on a discoid colony is slow, then suddenly not.

Instars: the staircase of molts

A nymph can't grow continuously, because its exoskeleton is rigid and doesn't stretch. So it grows in steps, by molting — shedding the old shell to reveal a new, larger one underneath. Each interval between molts is called an instar, and a discoid nymph passes through roughly six to eight instars before its final molt into adulthood. The exact count varies a little with conditions, but think of it as a six-to-eight-step staircase from pinhead to adult.

The molt itself (ecdysis) goes like this: the nymph stops eating and finds a quiet spot, the old cuticle splits along the back, and the roach works itself out wearing a fresh, soft, expandable shell. For a window of a few hours, that new shell is pale — often strikingly white — and pliable. The roach gulps air or otherwise expands its body to stretch the new cuticle to its bigger size, and then the shell hardens and darkens through a process called sclerotization. Those freshly molted white roaches you sometimes spot are not albinos and not sick; they're simply mid-molt, caught in the soft phase. Leave them be.

This soft window is the most dangerous moment in a discoid's life. A just-molted nymph is slow, soft, and nearly defenseless, which makes it the prime target for cannibalism in an overcrowded or under-fed bin. That single fact justifies two husbandry rules that otherwise sound fussy: don't overcrowd, and always keep protein available. A colony with plenty of hiding space and enough protein simply doesn't eat its own freshly-molted young at any meaningful rate. A starved, packed colony does, and it'll quietly cap its own growth that way.

What changes with each molt

Across those instars, the nymph isn't just scaling up uniformly. A few things track its progress:

• ◆Size increases at every molt — the obvious one.
• ◆Color deepens. Early instars are lighter tan or pale brown; later instars shift toward the richer brown of an adult.
• ◆Proportions shift. Very young nymphs have notably large heads relative to their bodies; that evens out as they grow.
• ◆Wing pads appear in the later instars — small flap-like buds on the thorax that are the precursors to adult wings. Spotting wing pads is a useful tell that a nymph is in its last instar or two and getting close to adulthood. (Nymphs never have functional wings; only the final molt produces real ones.)

This is genuinely useful for reading your colony at a glance. A bin full of small pale nymphs is a young colony that needs more time. A bin with lots of large, dark, wing-padded nymphs is a colony about to flip into a wave of new breeding adults — the point right before production accelerates.

How long the nymph stage lasts

This is where the calendar lives. The nymph stage is by far the longest pre-adult phase, running roughly 4 to 6 months under good warm conditions — and considerably longer when it's cool. In a chilly room in the low 70s, I've watched nymphs take close to a year to mature. Temperature is again the throttle: warmth accelerates metabolism and shortens the time between molts; cold stretches every instar out.

This single number drives the most common rookie mistake in the hobby. People buy a starter colony, see the adults, get impatient at month two or three, and start feeding off heavily — eating their breeding stock before the first home-grown generation has matured to replace it. The colony shrinks toward zero and they conclude discoids are "hard." They're not hard; they're slow, and slow demands patience. Plan on leaving a new colony essentially alone for 4–6 months while that first batch of nymphs climbs the staircase to adulthood. After that the overlapping generations carry themselves.

What nymphs eat and why it matters up the chain

Nymphs are opportunistic scavengers and, honestly, less picky than the adults. They'll work plant matter — decaying leaves, vegetables, fruit — and they need a real protein source (a quality roach chow or whole-grain mix) to fuel all that molting, plus the building blocks for a new exoskeleton each time. Hydration is non-negotiable; a dehydrated nymph can fail a molt and die half-out of its old shell. Provide water through gel crystals or a damp sponge, never an open dish a pinhead nymph can drown in.

The reason a nymph's diet matters to you is the whole point of keeping feeders: what the roach eats becomes what your pet eats. A nymph raised on good protein and varied produce is a nutrient-dense feeder; one raised on cardboard and stale veg is an empty calorie in a roach-shaped wrapper. Gut-loading isn't a separate event you do to roaches — it's the cumulative result of how you've fed the colony all along, topped off with a rich meal in the day or two before you harvest. (For the full feeding protocol, the keeping and breeding playbook goes deep on gut-loading.)

The transition: from nymph to adult

The final molt is the big one. When a last-instar nymph molts this time, it doesn't just come out bigger — it comes out winged and sexually mature. This is the moment the animal crosses from juvenile to adult, and several things land at once:

• ◆Wings deploy. The wing pads of the late nymph unfold into full adult wings. In discoids these wings are for cover and at most a feeble glide, not real flight — but their presence is the unambiguous signal that you're looking at an adult.
• ◆Coloration finalizes into the adult brown, with the characteristic darker marking on the pronotum.
• ◆Sexual dimorphism appears. Until now the sexes have been hard to tell apart; at the final molt the differences in wing length and body shape become readable (next section).
• ◆The reproductive system switches on. A fresh adult is ready, within a short settling-in period, to mate and — for females — begin the gestation cycle.

Behaviorally there's a shift too. Nymphs are reclusive, staying buried in flats and substrate, prioritizing growth and survival. Adults are more active foragers and participate in the colony's mating dynamics. When you start seeing newly-minted adults appear in numbers, your colony has reached the inflection point: the first home-grown generation is now capable of breeding, and production is about to compound.

Stage three: the adult

Adult morphology

An adult discoid is a robust, flattened oval, roughly 40–50 mm long, with a smooth glossy exoskeleton in light-to-dark brown. Long antennae sweep forward for smell and touch — a roach essentially "sees" its world chemically and tactically through those antennae. Six spiny legs, each tipped with small claws, give it a solid grip on rough surfaces (flats, screen, substrate) while completely failing on smooth vertical walls — the trait that keeps it contained. The wings lie flat over the back, fully formed but functionally just covers and gliders.

Sexing adults: the one skill worth learning

You don't need to sex discoids to run a colony — buy a mixed group and it sorts itself out — but it's worth knowing how, mainly to confirm a starter group actually contains both sexes and to read the colony's breeding potential. On a mature adult (this doesn't work on nymphs), look at two things:

• ◆Wing length relative to the abdomen. Males have longer wings that extend to, or slightly past, the tip of the abdomen. Females' wings are shorter and stop at about the end of the abdomen, leaving the silhouette a touch blunter at the rear.
• ◆Body shape. Females run broader, heavier, and more robust overall — built for carrying broods. Males are comparatively slimmer.

If you want to be thorough, the underside and the tip of the abdomen offer finer cues — males tend to have longer, more prominent cerci (the little sensory appendages at the rear) and specialized pheromone-releasing glands on the upper abdominal segments that females lack — but for everyday purposes, wing length and body width are all you need. Hold a few adults, compare them, and the pattern clicks fast.

Mating behavior

Reproduction in discoids runs largely on chemistry. Males release pheromones from glands on their tergites (the plates on the top of the abdomen) to advertise and attract females. The courtship display is a wing-raising posture: the male lifts his wings and fans, exposing those glandular regions and wafting his pheromones out, which also lets a female come up behind and inspect him. The female evaluates the signal and either accepts or moves on. Accepted, the pair mate by direct copulation, end-to-end, a coupling that can last anywhere from a few minutes to a couple of hours to ensure sperm transfer.

Environment tilts the odds here too. Warm, humid conditions — the ones that mimic the species' native tropics — drive both the frequency and the success of mating. A cool, dry bin doesn't just slow gestation; it dampens the mating drive that starts the whole cycle. It's all the same lever: heat and humidity turn the reproductive machine on; their absence turns it down.

After mating, the female forms her ootheca, draws it internally, and the cycle you've now followed from the top begins again inside her.

Lifespan, aging, and what it means for the colony

An adult discoid lives roughly one to two years under good conditions, on top of the 4–6 months it spent as a nymph. Through most of that adult span a female stays reproductively active, producing brood after brood, before output tapers as she ages — older females lay fewer, smaller broods, and you'll see general signs of age like reduced activity and visible wear on the exoskeleton.

Because they're ectotherms (cold-blooded), their metabolic rate — and therefore their pace of life — tracks temperature. Warmer conditions mean faster metabolism, faster reproduction, and somewhat faster aging; cooler conditions slow all of it down. That's a genuine tradeoff a breeder can think about, but in practice you keep a colony warm because maximizing reproductive output beats maximizing individual lifespan every time. You're not trying to keep one roach alive for three years; you're trying to keep a population renewing itself indefinitely.

And that's the real takeaway about lifespan in a colony context: individual lifespan barely matters. What matters is keeping a healthy spread of ages — newborns, nymphs at every instar, fresh adults, and proven breeders — all coexisting. A colony built that way is effectively immortal. Old females age out and die; the dozens of nymphs they produced are already climbing the staircase to replace them. This is why a discoid colony, once established and left in good conditions, becomes the most boring thing in the animal room — and for a feeder, boring is the goal.

How discoid reproduction compares to other roaches

It's easier to appreciate what discoids do if you see where they sit on the spectrum of cockroach reproductive strategies, because "roach" covers three genuinely different approaches:

• ◆Oviparous (egg-laying). This is the strategy of the pest species everyone pictures — German and American cockroaches. The female forms an ootheca and deposits it externally, gluing or dropping it in the environment, where it incubates on its own. The upside for the roach is she can produce egg cases rapidly without carrying the weight; the downside is every egg case is exposed to drying, mold, predators, and chance. For a keeper, externally-laid oothecae are fragile inventory — and it's exactly why crickets (different order, same problem) are so easy to lose.
• ◆Ovoviviparous (the discoid strategy). The female forms an ootheca but retains it internally in her brood sac, the embryos develop off their own yolk inside her, and she gives live birth. This is the middle path: more maternal investment than egg-laying, far higher survival, and — critically for us — no exposed eggs to manage. Discoids and dubia both sit here, which is a big part of why both are such dependable feeder colonies.
• ◆Viviparous (true live-bearing with maternal feeding). A rarer extreme, famously the Pacific beetle cockroach (Diploptera punctata), where the mother actually nourishes the developing embryos with a milk-like secretion rather than relying solely on yolk. Discoids don't go this far — their embryos live off yolk, not a maternal "milk" — but it's the next step along the same line of increasing investment.

The practical lesson from that spectrum: the more a roach invests in protecting its developing young, the more reliable it is to breed in captivity and the less it behaves like a household pest. Discoids land in the sweet spot — enough investment to be bulletproof and contained, not so much that broods come slowly. That's the reproductive biology underneath their whole reputation as a beginner-proof feeder.

Reading a gravid female and your colony's demographics

Once you understand the cycle, you can read a colony like a dashboard instead of staring at it hoping. Two skills make the difference.

Spotting a gravid female. A female carrying a developing brood looks heavier and broader through the abdomen than a non-gravid one — her body distends to accommodate the ootheca in the brood sac, and she tends to be less active, hanging back in the dark warm zones. You generally won't see the ootheca itself unless you catch her in the brief moment after she's formed it and before she draws it in (a pale capsule protruding from the rear). The takeaway isn't to handle and inspect females — disturbing gravid females is exactly what causes them to abort or reabsorb broods — it's to recognize that a bin full of broad, heavy, quiet females is a bin that's loaded and about to produce, not a bin that's stalled.

Reading the age spread. The healthiest colony is one with overlapping generations — a continuous spread from newborn pinheads through every nymph instar to fresh adults and proven breeders. Glance into the flats and ask what the mix looks like:

• ◆Mostly pinheads and small pale nymphs? Young colony, or a recent wave of births. It needs time, not intervention. Don't harvest.
• ◆Mostly large, dark, wing-padded nymphs? You're at the inflection point — a wave of new adults is imminent and production is about to climb. Hold steady.
• ◆A broad, even spread of every size? This is the target. The colony is self-renewing and you can harvest the surplus sizes indefinitely without touching the breeding base.
• ◆Mostly old adults and very few nymphs? Warning sign. Either the colony is too cold/dry/underfed to reproduce, or you've been harvesting nymphs too hard and aging out your breeders. Fix conditions and back off harvesting until the age spread rebuilds.

That single habit — reading the demographic mix rather than just counting heads — tells you when to harvest, when to wait, and when something's wrong, all from the life-cycle knowledge you now have. It turns the colony from a black box into something you can actually steer.

Putting the whole cycle on one timeline

Here's the complete arc, with the honest caveat that every number stretches in the cold and compresses in the heat:

End to end, a discoid goes from born to breeding in roughly half a year, then breeds for a year or two. The whole reason the colony feels slow at first and self-sustaining later is baked into that timeline: you have to fund the first lap before the compounding kicks in.

Why this life cycle makes discoids such a good feeder

Step back from the stage-by-stage detail and the cycle itself explains why discoids earn their reputation:

• ◆Live birth = no fragile egg phase to lose. The most vulnerable stage happens inside a self-regulating mother, so colony survival is high and forgiving of mistakes.
• ◆Incomplete metamorphosis = a continuous size range. Because nymphs are just small adults, a single colony naturally supplies every feeder size at once — pinheads for tiny mouths, large nymphs and adults for big ones — without you managing separate cultures.
• ◆A predictable, temperature-driven cycle = a controllable supply. Once you understand that heat is the master throttle on gestation, molting, and mating, you can dial colony output up or down deliberately rather than guessing.
• ◆Low climbing ability and no real flight = containment. The adult that closes the cycle is also the adult that can't climb out of a smooth bin or fly across the room. The biology that makes them easy to breed also makes them safe to keep.

It's also worth saying what they are ecologically, because it's the same story from a different angle: in the wild, discoids are detritivores that break down decaying plant and animal matter, recycling nutrients into the soil and serving as protein-rich prey for birds, reptiles, amphibians, and small mammals. A feeder colony is just that role, indoors — you're running a tiny piece of a tropical decomposition cycle and harvesting the surplus. They earn their keep beyond the bin too, which is why they show up as model organisms in behavioral and physiological research; their hardiness and slow, deliberate movement make them genuinely useful study animals.

Common life-cycle mistakes (and what's really going on)

Almost every "my discoids are broken" message traces back to misreading the cycle. The big ones:

• ◆"There are no eggs, so they're not breeding." Correct that you see no eggs — they're internal. Breeding shows up as new nymphs, not egg cases. Look for tiny roaches, not beans.
• ◆"It's been two months and nothing's happening." That's normal. Gestation alone is most of two months, and the first nymphs then need 4–6 months to mature. The first half-year of a new colony is supposed to look quiet. Don't intervene; just hold the conditions.
• ◆"They stopped reproducing." They didn't break — they stalled. Check temperature first (get a thermometer into the warm zone; it's colder than you think far more often than not), then humidity, then protein. Because the young are carried internally, a stalled colony almost always recovers once you fix the environment, usually within a few weeks.
• ◆"I keep finding dead white roaches." Those are failed molts or freshly-molted nymphs that got cannibalized. The cause is usually overcrowding, too little protein, or too dry (molting needs humidity). Fix density, keep protein constant, hold humidity up.
• ◆"I harvested and now the colony's crashing." You ate the breeders before the next generation matured. Always harvest down to the surplus, never into the breeding base, and respect the 4–6 month maturation lag before cropping a new colony at all.

Read the cycle correctly and almost none of these are emergencies — they're just the calendar, or one environmental dial out of place.

Where to get healthy starter stock

The fastest way to a self-sustaining colony is to start with a healthy, mixed-size group from a keeper who runs their colonies properly — you want active, glossy roaches across a spread of sizes (so you've got proven adults and a queue of nymphs already climbing the staircase), not a sad tub of all-one-size individuals you'll wait months on. When I need to seed a new colony or top up a thin one, All Angles Creatures stocks well-started discoid roaches in sizes suited to both founding a colony and feeding off directly.

For the authoritative biology behind the cockroach order — the metamorphosis, the ootheca, the family relationships — the University of Florida's Entomology and Nematology department is an excellent non-commercial reference, and broad cockroach biology is well covered in entomology resources such as the Smithsonian's overview of cockroaches. Cross-check anything you read on a hobby forum against sources like those before you trust it.

The short version

A discoid roach goes egg → nymph → adult by incomplete metamorphosis, with no larva and no pupa. The defining trick is ovoviviparity: the female carries her ootheca internally for roughly 7–9 weeks and gives live birth to ~20–35 nymphs, so there's never a fragile egg case to lose. Those nymphs climb a staircase of 6–8 molts over 4–6 months to reach adulthood, then live and breed for 1–2 years. Temperature is the throttle on every part of it — warm speeds the whole cycle, cold stalls it without killing it. Understand that arc and the husbandry stops being a list of rules and becomes obvious: keep them warm, humid, fed on protein, and uncrowded, then be patient through the first lap. Do that, and the cycle runs itself.

Ready to build the colony? Start with the complete discoid roach keeping and breeding playbook, or browse the full feeder insect care library for the rest of the staples.