A bioactive vivarium uses live plants, natural substrate and a “clean-up crew” of springtails and isopods to create a self-sustaining mini-ecosystem for your reptile, amphibian, or invertebrate. Done well, a bioactive setup reduces maintenance, improves enclosure humidity and air quality, and provides natural enrichment for your animal.
Setting Up A Clean-Up Crew
Your clean-up crew should ideally be added once your vivarium is fully planted and has been running for at least a few weeks, allowing live plants to establish and humidity/temperature to stabilise.
- Build a bioactive substrate base — typically a drainage layer (clay balls or similar), a substrate barrier, then a deep layer of bioactive soil mix (coco coir, leaf litter, sphagnum moss, and organic topsoil).
- Add hardscape (wood, cork bark, rocks) and live plants suited to your enclosure’s temperature and humidity.
- Top the substrate with a generous layer of leaf litter — this is the primary food source and shelter for your clean-up crew.
- Introduce springtails first, allowing a population to establish for a week or two before adding isopods, where possible.
- Add your chosen isopod species, ideally a starter culture of at least 20-30 individuals for a faster-establishing colony.
- Avoid adding your main animal until the clean-up crew has had time to settle in — a few weeks is ideal, though this isn’t always practical for existing enclosures.
Choosing Species
The right clean-up crew species depend on your enclosure’s temperature, humidity, and the animal you’re keeping.
- Springtails: Tropical White Springtails suit most heated tropical and temperate vivariums (20-28°C). Temperate Springtails are better for unheated or cooler bioactive setups (12-22°C).
- Beginner Isopods: Hardy, adaptable species that tolerate a range of conditions and breed readily — a great starting point for new bioactive keepers.
- Intermediate & Display Isopods: More specific humidity and temperature requirements, often chosen for their striking colours and patterns as much as their clean-up abilities.
- Rare Species: Slower-breeding or more delicate species best suited to experienced keepers with stable, well-established enclosures.
See our species profiles for detailed care requirements, growth rates, and breeding information for individual springtail and isopod species.
Maintaining Balance
A balanced bioactive vivarium is one where the clean-up crew population matches the bioload (waste produced) of your animal and plants.
- Top up leaf litter regularly — this is the main food source for both springtails and isopods.
- Maintain consistent humidity and temperature gradients so your clean-up crew can thermoregulate and find their preferred microclimate.
- Avoid using pesticides, chemical cleaners, or treated decor in or near a bioactive enclosure — these can wipe out your clean-up crew.
- If waste is accumulating faster than it’s broken down, consider adding more isopods or increasing leaf litter and food supplementation.
- Live plants help by absorbing nutrients released by the clean-up crew, completing the nutrient cycle.
Troubleshooting
Check humidity and temperature first, as these are the most common causes of population decline. Also consider whether your animal may be predating on isopods or springtails — some species, especially juveniles, are more vulnerable. Ensure there is enough leaf litter for shelter and food.
A small amount of mould is normal in a new bioactive enclosure and is often a food source for springtails. If mould is excessive, increase springtail numbers, improve ventilation, and reduce misting slightly.
Springtails move in short hops and are generally beneficial. Mites tend to move more smoothly/quickly and can sometimes indicate overfeeding. If you suspect a mite infestation, reduce feeding, improve ventilation, and remove any uneaten food promptly.
Most bioactive enclosures take 1-3 months to establish a balanced clean-up crew population, and several months to a year to feel fully “self-sustaining” with minimal intervention. Patience and consistency are key.
Yes, in most cases. Add a deep layer of leaf litter and a suitable substrate area, then introduce springtails and isopods as described above. It may take longer to establish than a purpose-built bioactive setup, but it is usually achievable.
Read our Springtail Care Guide and Isopod Care Guide for species-specific details, then shop our bioactive vivarium supplies to build your bioactive clean-up crew.