Axolotl Water Parameters

Your pet axolotl will be happiest and live longest if you get the water parameters right. Axolotl prefer temperatures of low to mid 60 degrees Fahrenheit. You can skip ahead to learn more about axolotl water temp, or keep reading to find axolotls preferred parameters for PH, ammonia, nitrite, and nitrate..

Checkout the new water parameters log!

Make sure you cycle your tank before introducing your axolotl to the water. Then check the water parameters once per week ( you can do this before each water change )

Axolotl Water Test Kit

Water can be tested with API Freshwater Master Kit; this kit is highly recommended as it tests all the necessary water parameters and is highly accurate. The water test kit comes with easy to read instructions, test tubes, can perform eight hundred tests, and includes a color chart for easy to understand results.


Ammonia and Nitrite need to be ZERO parts per million (PPM) as they are toxic to axolotls.

Nitrate should read between 5-20 PPM. If the nitrate level is too low the cycle breaks down. If it is too high it is toxic to axolotls.

PH should ideally be between 7.4-7.6 on the PH scale. Axolotl can tolerate a PH level 6.5-8, however water outside the ideal ph parameters can lead to ammonia toxicity.

Here we’re checking the water parameters of the axolotl tank using easystrips.

Use the free axolotl water parameters log! Built to be used with the API Freshwater Master Test Kit. Just click the color you get when you test your water, and keep track. Graph shows last three months of changing water parameters for each of the five parameters.

Axolotl Water Temp

As mentioned above, axolotl prefer temperatures of low to mid 60 degrees Fahrenheit. Temperatures up to 68 are well tolerated. Temperatures above 74 degrees will lead to stress, lost appetite, and may even lead to death. Keep it cool. Keep the tank away from windows that get direct sunlight as much as possible.

Tank chillers are available. These cost hundreds of dollars. Just make sure you are able to provide a water temp within an axolotl preferred parameters, and make sure you can do it consistently! If you live without central air, or some other form of thermostat controlled environment, then an axolotl may not be the pet for you. Some people do keep bottles of water in their freezer, and one in the tank. Then just keep an eye on the frozen water bottle in the tank, and when it’s melted switch it out with one from the freezer.

Axolotl water temperature is important. You want your axolotl to be comfortable, so it makes sense to give as close to the same temperature as the natural habitat. If you’ve ever put your toes down to the bottom of a shady creek, you know it’s not room temperature right?! Well that’s the water temp axolotl love.

Fish tank thermometers come in all shapes and sizes, but it’s just a few bucks to get a thermometer sticker to put on the outside of your axolotls tank. Keep an eye on that thermometer and do what you can to get that happy axolotl water temp.