How do I maintain the right temperature and humidity in my axolotl tank?
Keep your axolotl tank at 60–68°F (16–20°C) with 70–80% humidity. Proper lighting is also crucial.
Creating the Ideal Gradient
To ensure your axolotl thrives, maintain a gradient of 60–68°F (16–20°C) in the tank. This range allows the axolotl to regulate its body temperature by moving to the warm or cool side of the tank as needed. The humidity should be between 70–80% to mimic its natural aquatic environment.
The gradient is essential because axolotls are ectothermic, meaning they rely on external heat sources to regulate their body temperature. This self-regulation is crucial for their health and well-being.
- Target temperature: 60–68°F (16–20°C)
- Humidity range: 70–80%
- Warm side: 68°F (20°C)
- Cool side: 60°F (16°C)
Controlling Temperature and Humidity
Use a submersible heater on a thermostat to maintain the temperature. Place the heater on the cool side of the tank to create the gradient. Adjust the thermostat to keep the water temperature within the desired range.
To control humidity, use a substrate that retains moisture, like peat moss, and ensure good ventilation. Monitor the humidity at the water surface, as axolotls are aquatic and rely on the water's surface for humidity regulation.
Measure the temperature and humidity at the level of the axolotl to ensure they are within the correct range.
- Thermostat: Use to maintain water temperature
- Substrate: Peat moss for humidity retention
- Ventilation: Essential for humidity control
- Temperature measurement: At axolotl level
- Humidity measurement: At water surface
Signs of Imbalance
If the temperature is too high, axolotls may become lethargic or exhibit abnormal behavior. Conversely, if it's too low, they may become stressed or stop eating.
High humidity can lead to fungal infections, while low humidity can cause stress and dehydration.
Keep an eye out for these signs to ensure the environment is optimal.
- Lethargy at high temperatures
- Abnormal behavior at high temperatures
- Stress or stop eating at low temperatures
- Fungal infections at high humidity
- Stress or dehydration at low humidity
Lighting Considerations
Axolotls require a 12-hour light cycle to mimic their natural diurnal pattern. Use a timer to maintain this cycle.
UVB lighting is not necessary for axolotls, as they do not require sunlight for vitamin D synthesis. However, a gentle, diffused light can be beneficial for their overall well-being.
Ensure the lighting is positioned to provide even coverage without causing stress or discomfort.
- Light cycle: 12 hours of light per day
- UVB lighting: Not required, but gentle light is beneficial
- Light positioning: Even coverage, no stress
Keep reading about Axolotl: Axolotl care sheet
Related questions
How often should I check the temperature in the tank?
Check the temperature at least twice a day, especially during the first few weeks after setting up the tank.
What should I do if the humidity is too low?
Increase humidity by adding more water to the tank or using a humidifier near the tank.
How can I tell if the lighting is correct for my axolotl?
The lighting should be gentle and provide even coverage without causing shadows or glare.
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.