How to Maintain the Right Tank Temperature for Axolotls in Winter?
Keep your axolotl tank between 60–68°F (16–20°C) with a humidity of 70–80% and a 12-hour light cycle to ensure their health.
Temperature Gradient in the Tank
In winter, maintaining a temperature gradient in your axolotl tank is crucial. Aim for a basking/warm side of 68°F (20°C) and a cool side of 60°F (16°C). This gradient allows axolotls to self-regulate their body temperature by moving to the side that suits their needs.
The gradient is essential because axolotls are ectothermic, meaning they rely on external heat sources to regulate their body temperature. This natural behavior helps them conserve energy and adapt to changing conditions.
Creating a gradient is not just about the numbers; it's about providing a natural environment that mimics their natural habitat.
- Warm side: 68°F (20°C)
- Cool side: 60°F (16°C)
- Temperature gradient: 8°F (5°C)
Controlling Temperature in the Tank
To maintain the desired temperature gradient, use a submersible heater on a thermostat. Set the thermostat to keep the warm side at 68°F (20°C) and the cool side at 60°F (16°C).
Ensure the heater is placed in an area where the water flow is even, preventing hot spots. Regularly check the water temperature at the animal's level, not at the surface, as water temperature can vary.
Use a floating thermometer to monitor the water temperature. Adjust the heater as needed to maintain the temperature range.
- Submersible heater
- Thermostat
- Floating thermometer
- Check temperature at animal level
- Adjust heater as needed
Humidity and Lighting
In winter, humidity levels should be maintained between 70–80%. Use a water-filled terrarium or a humidifier to increase humidity if necessary.
Lighting should mimic natural daylight with a 12-hour light cycle. Use a timer to ensure consistency. Axolotls are active during the day and rest at night, so this cycle is important for their behavior and health.
Keep the tank away from drafts and direct sunlight to prevent temperature fluctuations.
- Humidity range: 70–80%
- Terrarium or humidifier
- 12-hour light cycle
- Avoid drafts and direct sunlight
Observable Signs of Temperature Imbalance
If the temperature is too high, axolotls may become lethargic, have difficulty breathing, or exhibit aggression. They may also experience increased metabolism, leading to rapid growth.
Conversely, if the temperature is too low, axolotls may become inactive, have a slower metabolism, and be more susceptible to diseases. They may also experience reduced growth and reproduction.
Regularly observe your axolotl's behavior and appearance to ensure the temperature is within the optimal range.
- Lethargy at high temperatures
- Difficulty breathing at high temperatures
- Aggression at high temperatures
- Reduced activity at low temperatures
- Slower metabolism at low temperatures
Keep reading about Axolotl: Axolotl care sheet
Related questions
How often should I check the water temperature in the tank?
Check the water temperature at least twice a day, especially during the winter months when temperature fluctuations can occur more frequently.
What should I do if the water temperature in the tank is too low?
If the water temperature is below 60°F (16°C), increase the temperature gradually by raising the heater setting or adding warm water to the tank.
How can I tell if the humidity is too low in the tank?
If the humidity is too low, you may notice your axolotl's skin appears dry or flaky. Increase humidity using a terrarium or humidifier.
Not veterinary advice. This guide covers husbandry — housing, feeding, cleaning and handling. If your axolotl is injured, off food unusually long, or behaving abnormally, contact a veterinarian.