Fill the aquarium with water completely, the way you would fill it for fish. Tap water is safe to use if you condition it as you would for a freshwater fish tank. If you do not condition the water, chlorine and other chemicals in the water can harm or kill your axolotls. Keep a lid on the aquarium at all times. Axolotls will sometimes jump out of their tanks. Make sure to provide your axolotl with an appropriate hiding place. Anything that provides shelter makes a good place for axolotls during the day. You can use flower pots, hollow decorations, or a safely stacked rock cave.
Any filter you install should have a spray bar or other outlet to control water flow. While axolotls need subtle water flow, they are stressed by actively flowing water. Exposure to strong water flow may cause them to stop eating or develop stress-related health problems.
Minimize how often you keep the light on. Lights can generate excess heat, which can be bad for an axolotl. Turn it off when you are not feeding or viewing the axolotl.
Make sure to adjust the temperature of the room that contains the tank if you live in an area prone to extreme heat or cold. You may need to keep an air conditioner or heater in the room during some months. Axolotls exposed to temperatures above 74° F (23° C) will develop heat stress. If your tank is prone to overheating, purchase a tank cooler.
Feed your axolotl every other day for half an hour. Provide the axolotl with as much food as it can eat in a half hour time frame. [7] X Research source
