Top Invertebrate Supplies

Top Invertebrate Supplies: UK Keeper's Guide

Setting up for invertebrate keeping doesn't require enormous investment, but the right basics make the difference between a thriving setup and ongoing problems. This guide covers what UK keepers actually need for isopods, springtails, cockroaches, millipedes, and other invertebrate species - focusing on practical, tested equipment rather than fancy specialist gear.

Enclosures: The Foundation

The right enclosure depends on the species you're keeping. Two main approaches work for the UK invertebrate hobby:

Plastic Storage Containers (Budget Approach)

The standard hobby starter. Plastic boxes from supermarkets or B&Q with mesh-ventilated openings work well for most invertebrates:

• Cheap and easy to find
• Easy to modify with ventilation cutouts
• Lightweight and stackable
• Suitable for isopods, springtails, basic millipedes, and most cockroach colonies
• 4-10 litre containers for small starter colonies; larger for established populations

Glass and Acrylic Terrariums (Display Approach)

More visually attractive but more expensive. Useful once you've established success with plastic setups:

• Better visibility for observation
• More stable conditions due to thermal mass
• Various sizes from compact to room-filling
• Mesh ventilation panels usually pre-fitted
• Suitable for display-quality bioactive setups

Browse our enclosures collection for current UK stock.

What Matters Across All Enclosures

• Good ventilation - cross-flow ventilation prevents stagnant humid air and respiratory issues
• Appropriate size - match to species adult size and colony goals
• Escape-proof closure - small species like springtails find tiny gaps
• Easy to clean and maintain - practical access matters more than aesthetics

Substrate: Where Most Setups Succeed or Fail

Substrate composition matters more than almost anything else for invertebrate health. The key thing to understand is that for detritivores the substrate is a primary food source, not just a floor, so it needs to be nutritious rather than inert. Different species have different needs but the foundation is similar:

Standard Bioactive Mix

• 40-50% flake soil, white-rotted hardwood and organic topsoil - the nutritious, moisture-retaining base
• 20-30% crushed leaf litter - food and microbial habitat
• 10-20% additional flake soil - substrate nutrition (decomposed wood with microbial communities)
• 5-10% decaying hardwood pieces - food and structure
• Top layer of loose leaf litter

This suits isopods, springtails, millipedes, and most detritivore species. A note on coco coir: it's widely sold as a base and holds moisture well, but it's largely inert and offers detritivores almost nothing to eat, so we don't recommend building your substrate around it - flake soil and hardwood do the same moisture job while actually feeding the colony. Our complete substrate guide covers this in detail. Browse our accessories collection for substrate components.

What to Avoid

• Coco coir as the base - holds moisture but is nutritionally empty for animals that eat their substrate
• Peat moss - acidic and unsuitable for most invertebrates (despite often being recommended in older sources)
• Pre-fertilised potting soil - fertiliser salts are harmful
• Cedar or pine wood shavings - resinous compounds are problematic
• Sand-based substrates - for desert reptiles, not invertebrates
• Garden soil from pesticide-treated areas

Species-Specific Variations

• Mediterranean isopods (A. vulgare morphs) - drier with a humidity gradient
• Tropical isopods (Cubaris cave species) - limestone pieces added, higher humidity
• Millipedes - deeper substrate (15-20cm) for burrowing species
• Cockroaches - varies by species, leaf litter focus for detritivore species
• Springtails - finer substrate, slightly more moisture

Hides and Structure

Essential across all invertebrate species. Standard options that work well:

• Cork bark - the standard hide. Stable, safe, naturalistic. Different sizes for different species
• Lotus pods - natural enclosed spaces, attractive in display setups
• Decaying hardwood pieces - double as food (for detritivores) and habitat
• Sphagnum moss patches - humidity refuge zones
• Leaf litter accumulations - natural hiding spaces and food

Key principle: multiple hides at different humidity levels lets invertebrates self-regulate. A single hide forces them to choose one set of conditions.

Calcium Sources

Important for isopods, millipedes, and any species with calcium-rich exoskeletons:

• Cuttlebone - always available on the substrate surface. The standard hobby choice
• Limestone pieces - beneficial for Cubaris and other cave-origin species
• Crushed eggshells - economical supplement
• Mineral-rich grit - for some specialist species

Avoid calcium powder dusting - that's reptile feeder methodology, unsuitable for invertebrates.

Food Options by Species

Detritivores (Isopods, Springtails, Millipedes, Some Cockroaches)

Foundation diet:

• Hardwood leaf litter - the staple. Oak, beech, hornbeam, maple
• Decaying hardwood - food and habitat together
• Fresh vegetables - courgette, carrot, sweet potato (1-2 times weekly)
• Protein - fish flakes, dried shrimp (weekly small portion)
• Calcium - always-available cuttlebone

Avoid for Detritivore Species

• Cooked meat (attracts mites and mould)
• Dog/cat food (high fat)
• Citrus and tomato (acidic)
• Anything pesticide-treated
• Calcium powder dusting (reptile methodology)

Humidity and Moisture Management

Different invertebrate species need different humidity levels, but the management approach is similar:

Equipment

• Spray bottle - basic but sufficient for most species
• Hygrometer - £5-10 for a basic one, important for monitoring
• Sphagnum moss patches - humidity refuges
• Mesh material - for ventilation that prevents drying while allowing airflow

Approach

Create a gradient rather than uniform conditions:

• One end wetter (sphagnum moss, regular misting)
• Other end drier (open substrate, less misting)
• Invertebrates self-regulate by moving between zones
• Use dechlorinated water (leave tap water overnight) for misting

What to Avoid

• Water dishes - a drowning risk for most invertebrates. Maintain humidity through misting instead
• Sealed enclosures - cause respiratory issues despite high humidity
• Waterlogged substrate - different from moist; causes mould and anaerobic conditions

Cleanup Crew

Even non-bioactive setups benefit from cleanup crew species:

• Springtails (Collembola) - control mould and process microscopic organic matter. Essential alongside larger species
• Dwarf white isopods - popular in dart frog setups as gentle cleanup
• Predatory mites (Hypoaspis miles) - control problematic mite infestations

Combining species creates a self-maintaining ecosystem that reduces ongoing maintenance.

Species-Specific Equipment Needs

Isopods

Standard setup - nutritious flake soil and hardwood substrate, leaf litter, decaying wood, cork bark hides, cuttlebone. Different morphs may need humidity or temperature adjustments. Browse our isopods collection.

Cockroaches

Species-dependent. Detritivore cockroaches use isopod-style setups; some species need higher temperatures or specific humidity. Browse our cockroaches collection.

Millipedes

Need deeper substrate (15-20cm) for burrowing. Higher humidity. Calcium critical. Browse our millipedes collection.

Springtails

Smaller containers work well. Charcoal substrate option for some species. Moist conditions essential.

The Starter Equipment Checklist

For a new invertebrate setup, the basics:

• Container - plastic storage box (4-10 litres for starter)
• Flake soil - nutritious substrate base
• Leaf litter - dietary foundation and habitat
• Organic topsoil - adds structure to the base
• Decaying hardwood pieces - both food and habitat
• Cork bark pieces - primary hides
• Lotus pods - additional hides and visual interest
• Cuttlebone - calcium source
• Sphagnum moss - humidity refuge
• Spray bottle - for misting
• Hygrometer - humidity monitoring
• Mesh material - for ventilation openings
• Springtail culture - bioactive ecosystem support

Available through our accessories collection.

The Honest Recommendation

Start simple. The temptation with invertebrate keeping is to acquire fancy equipment, multiple species, and complex setups before you've established success with the basics. A better approach:

• One species, basic setup for 3-6 months
• Master the husbandry - observe, learn, troubleshoot
• Add a second species in a separate enclosure
• Gradually expand equipment and species as confidence grows

In my experience the most successful UK keepers didn't start with elaborate setups - they started with cheap plastic boxes, basic substrate, and one accessible species, then built from there. If you're at the very start, our first isopods guide walks through a complete beginner setup. For current stock browse our isopods, cockroaches, millipedes, or accessories collections.

Frequently Asked Questions

What do I need to start keeping invertebrates?
A ventilated plastic container, a nutritious substrate (flake soil, hardwood and organic topsoil), leaf litter, decaying wood, cork bark hides, a cuttlebone for calcium, a spray bottle, a cheap hygrometer, and a starter colony. A springtail culture alongside keeps mould in check. You don't need expensive specialist gear to begin.

What is the best substrate for isopods and millipedes?
A nutritious base of flake soil, white-rotted hardwood and organic topsoil, with leaf litter and decaying wood mixed through. This feeds the animals as well as housing them, which matters because both eat their substrate. Avoid building it around coco coir - it holds moisture but is nutritionally empty.

Do invertebrates need a water dish?
No - for most small invertebrates a water dish is a drowning risk. Maintain humidity through misting and a moisture gradient instead, using dechlorinated water. Sphagnum moss at the damp end helps hold humidity.

Do I need a heat mat or special lighting?
Most hardy species do fine at UK room temperature with no special heating or lighting. Tropical species like Cubaris benefit from gentle background warmth. None need UV or basking lamps the way many reptiles do.

What's the cheapest way to set up an invertebrate enclosure?
A plastic storage box with mesh-ventilated cutouts, a DIY substrate mixed from bulk components, and locally collected (pesticide-free) leaf litter and wood. Building your own substrate rather than buying pre-mix, and starting with one hardy species, keeps costs very low.