Most bioactive care guides are written for keepers in Florida or California. In Canada, winter brings a very different set of problems: furnace-dried air, cold glass, short days and the occasional ice-storm power outage. Here's how to keep your plants, clean-up crew and animals thriving from November to March.
1. Humidity drops fast when the furnace kicks on
Indoor humidity in a heated Canadian home often falls to 20–30% in January. Screen-top enclosures lose moisture quickly, so a tropical build that held 70% in summer may struggle to stay above 50%.
- Cover part of the screen. Glass, acrylic or even plastic film over half to two-thirds of a mesh top cuts evaporation dramatically. Leave some ventilation so air doesn't go stagnant.
- Mist morning and evening instead of once a day, and check with a digital hygrometer rather than guessing.
- Thicken the leaf litter. A deeper layer of leaf litter keeps the soil surface damp where isopods and springtails live.
- Add moisture-holding moss such as sphagnum in humid hides.
- Run a room humidifier if you keep several tropical enclosures. It helps the animals and the keeper.
2. Watch the cold glass
Enclosures near exterior walls or windows can be several degrees colder at the glass than in the centre. Condensation forms on the cold side, soil there stays waterlogged and mould follows.
- Move enclosures off exterior walls if you can, or add a solid background such as cork bark to insulate the back and sides.
- Keep enclosures away from heating vents, which blast dry air and cause big temperature swings.
3. Heat safely
Many homes drop to 17–19°C overnight in winter, which is too cold for most tropical reptiles. Use a thermostat-controlled heat source sized for the enclosure, measure at both the warm and cool ends, and never rely on the room alone. Remember that heat lamps and heat mats dry the soil beneath them, so water those areas a little more.
4. Give plants more light
Short winter days mean less window light. If plants stretch or yellow, run your terrarium LED on a consistent 10–12 hour timer. Plants that stay healthy keep feeding the soil and cleaning the air for your animals.
5. Plan for power outages
Ice storms and winter outages are a reality in much of Canada. A healthy bioactive build is more stable than a sterile tank, because the deep soil holds warmth and moisture, but you should still be ready:
- Keep a few chemical hand-warmers or reptile heat packs on hand.
- Cover the enclosure with a blanket to hold heat, leaving a small gap for air.
- Have a small cooler ready to move small animals into with a wrapped heat pack if the outage runs long.
6. Ordering supplies in winter
Soil, substrate, wood and leaf litter ship fine at any temperature. Live moss is more delicate, so order it early in the week so it doesn’t sit in a cold depot over a weekend. Ordering from a Canadian store also avoids long cross-border delays where packages can freeze at customs. Everything we sell ships from Canada, priced in CAD.
Winter checklist
- Digital thermometer and hygrometer in every enclosure
- Partial cover over mesh tops
- Fresh leaf litter top-up before the cold sets in
- Thermostat on every heat source
- Lights on a timer
- Emergency heat packs for outages
Frequently asked questions
Will my isopods and springtails survive winter?
Yes, as long as the enclosure stays at room temperature or warmer and the soil stays damp. Dry soil, not cold, is what usually kills a clean-up crew in winter.
Is white mould worse in winter?
It can be, because covered tops reduce airflow. A little white fuzz is normal and springtails will eat it. Add a small gap or a computer fan for airflow if it keeps coming back.
Getting your enclosure ready for winter? Shop leaf litter, moss and bioactive soil, shipped from Canada.