Identify the colony before choosing its conditions
Terrestrial isopods are the woodlice, pill bugs or slaters kept in many hobby colonies. Those common names cover different animals. The British Myriapod and Isopod Group describes their diversity; the EAZA live-food manual also cautions that different species need different environmental methods.
Ask for the scientific name, the seller’s identification confidence and the conditions in which this colony is already breeding. Keep the trade name in a separate field. ‘Orange’, for example, is useful for distinguishing a line in your collection but is not a substitute for an identified species.
Obtain the animals from a traceable, lawful source. Confirm local ownership and movement rules before importing or exchanging a culture. This setup guide does not establish that any species can be shipped to every country.
Choose a container around maintenance, not a photo
Portland Insectarium recommends a secure container with ventilation that also retains moisture. The practical task is to balance those two requirements for the species, the room and the container. A lid copied from a photograph may behave differently in a dry heated room.
Before adding soil, check that the lid closes reliably and that ventilation openings will not let the smallest animals escape. Put the empty container where you intend to keep it and make sure it can be reached without tipping nearby cultures. Label both the box and lid so a cleaning session cannot quietly swap identities.
Decide how you will inspect, feed and water the culture. A large container can be inconvenient if the back corner is inaccessible. Leave a clear viewing area and choose refuges you can lift gently without crushing animals against the sides.
Make the substrate and leaf layer part of the habitat
Carolina’s terrestrial-isopod guide uses moistened substrate with a leaf-litter or similar organic layer and excludes chemically treated materials. Those broad elements are a better starting point than a bare box with a dish of vegetables. The substrate provides a place to shelter, while suitable decaying material is part of the food environment.
Record the substrate ingredients and where the leaves came from before mixing. A bag labelled only ‘forest mix’ is hard to reproduce or investigate if problems develop. If you buy prepared materials, retain the supplier and batch details. Avoid collecting from locations with uncertain pesticide, traffic or waste exposure.
Do not assume freezing, rinsing or heating will remove chemical contamination. Material sourcing and pest-reduction methods are separate questions. Keep spare clean materials available so you do not have to improvise during a move.
Create a moisture plan for the identified species
Minibeast Wildlife’s Powder Blue guide, specifically for Porcellionides pruinosus, keeps one end of the substrate damp and warns against waterlogging. That is a useful example of a moisture gradient; it is not a universal recipe for every tropical or arid-adapted isopod sold in the hobby.
Mark the intended moist area on your setup sketch and learn how the substrate looks and feels there. Check it below the leaf surface as well as at the top, without repeatedly disturbing the whole colony. A humid air reading and wet substrate describe different things.
Record water additions in a repeatable way, such as the measured amount and the location watered. If the room becomes warmer or drier, inspect the actual habitat more often rather than blindly maintaining the old spraying schedule.
Check the colony on arrival without losing its identity
Place the labelled shipment beside the matching prepared enclosure and check the supplier’s instructions first. Photograph the label and note the arrival condition before transferring the animals carefully. Keep different incoming cultures separate so a stray animal or piece of substrate cannot blur the species or line history.
Record the number stated by the supplier separately from a number you have actually counted. ‘Sold as 20; 17 visible on arrival’ is clearer than changing the total to 17 and later treating every juvenile as a confirmed birth. Do not repeatedly excavate the enclosure to make the numbers match.
When something is unclear, contact the supplier with the dated photos and conditions. A precise account of the shipment is more helpful than a later recollection that the culture ‘looked wrong’.
| Field | Example of useful detail |
|---|---|
| Identity | Scientific name, trade name and identification confidence |
| Source | Supplier, arrival date and order reference |
| Initial population | Declared count versus animals actually observed |
| Habitat | Container, substrate, leaf source and refuge layout |
| Watering | Where moisture was added and how much |
| Follow-up | Photos, observed losses and any supplier advice |
Keep feeding and inspection proportionate
Maintain the leaf layer and use supplementary foods in amounts you can observe and remove. A small colony does not need a large pile of fresh food simply because the container looks empty. Check under a chosen refuge gently and compare observations over time; continuous disturbance is a poor substitute for a routine.
Log the food offered, whether it disappeared, visible leftovers and the condition of the moist zone. Keep ‘not seen’ separate from ‘dead’. A colony record can use approximate observations when exact counts would require dismantling the habitat.
Keep dates and observations consistent so you can compare colony checks. Explore SquamaTracker’s current features for app-based tracking and check which colony records the published version supports. This guide does not promise that every isopod species or colony-management function is available.
Explore tracking in the SquamaTracker app →Plan for growth, problems and rehoming
Before the culture expands, decide where additional containers would go and how each split would be labelled. Keep the parent colony reference, split date and actual transfer count. That avoids claiming an exact population for a box you only occasionally inspect.
If several animals die, review temperature, substrate moisture, food and recent changes together. Isolate the affected culture from others while seeking informed advice; do not transfer suspect substrate around the collection. Keep any intervention clearly recorded so subsequent observations can be interpreted.
Never empty a culture into a garden or compost heap as a disposal shortcut. Arrange a lawful rehoming or local-authority disposal route for live animals and potentially occupied substrate.
Frequently asked questions
Do all isopods need the same humidity?
No. Species and enclosure design matter. Get a species-specific starting plan and inspect substrate moisture as well as air readings.
Are ten isopods guaranteed to become a large colony?
No. The starting number alone does not establish age, sex, health, identity or suitable conditions. Avoid promising a fixed breeding timetable.
Can I label the colony only with its colour morph?
Keep the colour or trade name, but record the scientific identification separately. A trade name alone does not determine husbandry.