Axolotl Care at a Glance
- Tank size: A properly maintained 10-gallon aquarium can house one axolotl for its entire life.
- Water temperature: 65–70°F target range.
- Danger threshold: Begin cooling promptly at 72°F.
- Ammonia: 0 ppm.
- Nitrite: 0 ppm.
- Nitrate: Preferably below 20 ppm.
- pH: Approximately 6.5–8.0.
- Filtration: Effective, gentle, low-flow filtration.
Tank Size and Long-Term Housing
A properly cycled and maintained 10-gallon aquarium is suitable for one axolotl for its entire life. In a 10-gallon aquarium, consistent water testing, waste removal, water changes, and filter maintenance are especially important because there is less water volume to buffer changes.
Larger aquariums can provide additional water volume, floor space, and room for décor, but they are not required for a single axolotl under Axolotl Superstore's care standard.
Cycle the Aquarium Before Adding an Axolotl
A new aquarium must complete the nitrogen cycle before an axolotl is introduced. Beneficial bacteria process toxic ammonia into nitrite and then nitrate.
Before introducing your axolotl, confirm ammonia is 0 ppm, nitrite is 0 ppm, nitrate is present but controlled, chlorine and chloramine have been removed, and temperature is stable.
Keep Water at 65–70°F
Axolotls are cold-water amphibians. Keep the aquarium in the 65–70°F target range. 72°F is the danger threshold; begin cooling promptly if the water reaches 72°F.
Keep the aquarium away from direct sunlight, heaters, and other heat sources. Depending on room temperature, an aquarium fan, air conditioning, or a properly sized chiller may help maintain stable water.
Maintain Safe Water Parameters
- Temperature: 65–70°F
- Ammonia: 0 ppm
- Nitrite: 0 ppm
- Nitrate: Preferably below 20 ppm
- pH: Approximately 6.5–8.0
- Chlorine/chloramine: 0 ppm
Use an aquarium conditioner that treats chlorine and chloramine whenever tap water is added. Stable water chemistry is more important than constantly chasing a specific pH.
Use Gentle Filtration
Axolotls produce noticeable waste, so filtration needs to be effective without creating a strong current. Sponge filters, baffled hang-on-back filters, and properly adjusted canister filters can all work when flow is gentle.
Substrate, Hides and Plants
A bare bottom or fine aquarium sand can work well. Avoid gravel and small stones that could be swallowed. Provide at least one smooth hide and avoid sharp decorations or openings that could trap the animal.
Hardy live plants can add cover and create a more natural environment. Browse our Axolotl Safe Plants for aquarium-ready options.
What Do Axolotls Eat?
Axolotls are carnivores. Earthworms or nightcrawlers and quality sinking axolotl pellets are commonly used as staple foods. Blackworms, bloodworms, and brine shrimp can provide age-appropriate variety.
Typical Feeding Frequency
- Young juveniles: once or twice daily
- Growing juveniles: once daily
- Subadults: every one to two days
- Adults: every two to three days
Remove uneaten food promptly so it does not degrade water quality.
Tank Mates
Axolotls do not need companions. Fish are generally not recommended because they may nip external gills, compete for food, introduce disease, or be swallowed. Some keepers consider carefully selected invertebrates, but no tank mate is completely risk-free. Read our Axolotl-Safe Tank Mates guide before adding anything to the aquarium.
Routine Maintenance
- Check water temperature daily.
- Observe appetite, gills, skin, and behavior.
- Remove visible waste and uneaten food promptly.
- Test ammonia, nitrite, nitrate, and pH regularly.
- Perform partial water changes as needed to maintain stable water quality.
- Confirm the filter is operating with gentle flow.
Signs of Stress or Illness
Watch for prolonged refusal to eat, white or cotton-like growth, red or irritated skin, open sores, severe swelling, persistent uncontrolled floating, loss of balance, rapid gill deterioration, significant weight loss, abnormal posture, or difficulty moving.
Start by checking water parameters and temperature. Contact an exotic veterinarian when symptoms are severe or persist, and do not use fish medications or home treatments without appropriate veterinary guidance.
Our Commitment to Responsible Care
Axolotl Superstore is a Healthy Trade Institute (HTI) Certified Business Member. We focus on responsible husbandry, animal welfare, biosecurity, customer education, and continued support before and after your purchase.
Need help preparing your aquarium? Browse our complete axolotl setups, water-care essentials, and available axolotls, or contact us.
This guide is educational and is not a substitute for veterinary diagnosis or treatment.