The first thing an axolotl needs is space, and lots of it! An axolotl can grow to 30cms long, so they tank length needs to be more than double that! A good tank size for one axolotl is 70cms long, any height above 30cms (45 or so is good), and a width of 45cms. It is good to add about 20cms length for every other axolotl you want to add, as a general rule. Length is much more important than height, as axolotls tend to hang out on the ground.

In terms of gallons, you want a 20gal long for one adult axolotl, and an additional 10gal per axolotl added.

 

For substrate, you can have either a bare-bottom tank or fine sand. Some people use slate tiles and silicon them to the tank floor, for a secure, nicer look than a bare tank. Aquarium pebbles and gravel are an absolute NO. Axolotls eat with a vacuum effect and will suck up stones. Not only do they have to painfully poop them out, but they can get stuck, clog up and cause impaction, which can kill your axolotl. Sand is a lot smoother and finer, so it can pass through without clogging, and less painfully.

 

Lighting is not required in an axolotl tank and neither are live plants. Both are optional. If you have lighting, you need to provide plenty of shadey hiding places for your axolotl, as they have weak eyes which are hurt by the light.

 

Hides are the most important tank decoration you can have. Axolotls need to hide to protect their eyes, and to feel safe. They need many dark places during the day so they can relax.

 

Axolotls need a filter, but it needs to have a low output rate. If the water current is too strong, it will stress your axolotl out. The best option is a canister filter with a spray bar option, which you can position against the glass, to create as little current as possible, but still provide the best filtration.

 

They do not need a heater, as they are cold water creatures. If you live somewhere where it gets quite hot, you will need to buy a chiller.

 

Also see: How many axolotls can I keep in my tank?