Axolotls are bottom-dwelling carnivores that spend the majority of their time in their substrate, so providing plenty of dark hiding spaces for them is key. You should also choose an easily cleanable substrate as these amphibians can quickly become entangled in it or block their gills if it becomes too thick.
Tank size is another key element in creating an ideal habitat for an axolotl. While smaller tanks might work, due to producing waste that needs filtering out, an ideal rule of thumb would be increasing its capacity by 10 gallons for each new axolotl introduced into its new home.
Some axolotl owners decide against providing their animals with filters altogether, which is risky as filters help maintain stable water parameters and prevent disease. If this option is taken, make sure that a freshwater testing kit is readily available so that you can monitor water quality regularly.
Other tank accessories for axolotls include thermometer and hood to shield sunlight. You will also require a small plastic tub for transporting sick axolotls.
When adding fish to an aquarium, always do so after a 30-day quarantine period has passed. Fish carry diseases and parasites which could wreak havoc with your axolotls; additionally they tend to chase them around and bite them; mistaking their external gills as food; it is also not unusual for axolotls to cannibalize each other!
