So, you’ve fallen in love with axolotls, those quirky, adorable amphibians with their permanent smiles and fluttery gills.
Setting up their tank might feel a bit overwhelming at first, but it’s honestly not as tricky as it sounds. Once you know what they need to thrive, you’ll be ready to create the perfect little underwater world.
Let’s break it down step by step so you can get started today.
Picking the Right Tank for Your Axolotl

The first thing you’ll need is the right tank. Axolotls may be small, but they need plenty of space to stay happy and healthy.
Axolotls can grow to a size of 20 to 30 cm (approximately 8 to 12 inches) in length, making them one of the largest salamanders in the world.
How Big Should the Tank Be?
Aim for at least a 20-gallon tank for one axolotl. If you’re thinking of adding another, bump it up to a 40-gallon tank. Axolotls love to explore and need space to stretch out without bumping into tank mates. Keep in mind that a longer tank is better than a tall one since axolotls spend most of their time near the bottom.
Glass or Acrylic: Does It Matter?
Either option works, but glass tanks are more durable and less likely to scratch. If you’re setting up your first axolotl habitat, glass is usually the safer bet. Acrylic tanks are lighter, but they can cloud over time if not cared for properly.
Choosing the Right Substrate
Axolotls are curious creatures and love to dig, so the tank’s substrate is super important. It’s not just about looks—it can affect their health too.
A single female axolotl can produce between 200 and 1,000 eggs in a single spawning event, highlighting their prolific breeding capabilities.
Why Sand Is the Best Choice
Fine aquarium sand is the safest option. It’s soft, natural-looking, and won’t hurt your axolotl if they accidentally swallow some while foraging. Avoid regular beach sand, as it can contain harmful chemicals.
Say No to Gravel and Pebbles
Gravel and small pebbles might look nice, but they’re a choking hazard. Axolotls can easily ingest them, leading to serious health issues. Even larger rocks aren’t great because they can trap food and waste, making the tank harder to clean.
Setting Up the Water
Water quality is one of the most critical parts of setting up an axolotl tank. They’re sensitive to changes, so it’s essential to get it just right.
What’s the Ideal Water Temperature?
Axolotls thrive in cool water, between 60°F and 68°F. A water chiller or an aquarium fan can help maintain this range, especially if you live in a warm climate. Avoid heaters, as they can cause stress and illness.
The axolotl’s incubation period for eggs lasts about 2 to 3 weeks, after which the larvae emerge ready to swim.
Before adding your axolotl, test the water for:
Testing the Water
- Ammonia: Should be 0 ppm.
- Nitrites: Also 0 ppm.
- Nitrates: Safe below 20 ppm.
- pH levels: Aim for 6.5–7.5.
Use an aquarium test kit to check these levels regularly. It’s a quick way to catch issues before they become problems.
Dechlorinate the Water
Tap water isn’t safe as is—it contains chlorine and chloramines, which are toxic to axolotls. Use a water conditioner to remove these chemicals. Make sure the water is treated every time you do a water change.
Filtration and Flow
A good filter keeps your tank clean and your axolotl healthy. But remember, axolotls aren’t fans of strong currents.
Choosing the Right Filter
Go for a sponge filter or a low-flow canister filter. These are gentle enough for axolotls and won’t disrupt their calm environment. If you already have a filter with strong output, use a spray bar or sponge attachment to reduce the flow.
Cleaning the Filter
Clean the filter every few weeks, but avoid scrubbing it too hard. You want to keep some of the beneficial bacteria that help maintain water quality.
Decorating the Tank
Decorating isn’t just about making the tank look nice. The right setup can provide comfort and enrichment for your axolotl.
Safe Hides and Shelters
Axolotls love hiding spots where they can feel secure. Look for aquarium-safe caves, PVC pipes, or smooth terracotta pots. Make sure there are no sharp edges that could injure them.
Plants: Real vs. Fake
Live plants like java fern and anubias are fantastic. They look great, help oxygenate the water, and provide natural hiding spots. If live plants feel like too much work, high-quality fake plants are fine too—just ensure they’re soft and free of sharp edges.
Avoid Dangerous Decor
Skip anything with rough surfaces, sharp edges, or small holes. Axolotls have delicate skin and can easily get injured. Stick to decorations made specifically for aquariums.
Feeding Your Axolotl
Setting up a tank is just the first step. Once your axolotl is settled, you’ll need to provide the right diet.
What Do Axolotls Eat?
Axolotls are carnivores. They thrive on:
- Live or frozen bloodworms
- Earthworms (pesticide-free)
- Pellets made for carnivorous fish or axolotls
Avoid feeder fish, as they can carry diseases. Also, steer clear of large chunks of food, which can cause choking.
How Often Should You Feed Them?
Feed juvenile axolotls daily, while adults can eat every two to three days. Remove any uneaten food after 15–20 minutes to keep the water clean.
Tank Maintenance: Keeping It Clean
A clean tank means a happy axolotl. Maintenance doesn’t have to be a chore if you stay consistent.
Weekly Water Changes
Replace about 20–30% of the tank’s water each week. Use a siphon to remove debris from the substrate and dechlorinate the new water before adding it to the tank.
Cleaning the Glass
Use an algae scraper to keep the glass clean. Avoid chemical cleaners, as even trace amounts can be toxic.
Monitoring Water Parameters
Check the water parameters at least once a week to ensure everything is stable. This helps you catch small problems before they affect your axolotl’s health.
Introducing Your Axolotl to the Tank
Once everything is set up and stable, it’s time to introduce your new friend to their home.
Acclimating Your Axolotl
Don’t just toss them in the tank. Instead:
- Float their container in the tank for 15–20 minutes to match the temperature.
- Gradually add small amounts of tank water to their container every 5 minutes for about 30 minutes.
- Gently release them into the tank.
Watch for Stress
For the first few days, keep an eye on their behavior. If they seem stressed (e.g., excessive gill flicking or floating), double-check your water parameters.
Troubleshooting Common Issues
Even with a great setup, you might run into some challenges. Knowing what to do can save you time and stress.
Cloudy Water
This usually happens in new tanks as the nitrogen cycle establishes itself. Be patient, test your water, and avoid overfeeding.
Aggression Between Tank Mates
If you’re housing multiple axolotls, they may nip at each other occasionally. Provide more hiding spots and make sure they have enough space to reduce conflict.
Floating Axolotl
A floating axolotl might just be gulping air, but it can also indicate digestive issues. Check their diet and water parameters to rule out problems.
Setting Up for Long-Term Success
Creating a comfortable home for your axolotl isn’t a one-and-done task. It’s about maintaining a healthy environment over time.
Keep Learning
Join axolotl enthusiast groups online, read up on their care, and connect with other owners. The more you know, the better equipped you’ll be to provide the best care.
Regular Vet Checkups
Find a vet experienced with amphibians. Routine checkups can help catch health issues early and keep your axolotl thriving.
Your Axolotl Tank Awaits
Setting up an axolotl tank is all about creating a safe, comfortable environment where they can thrive. From choosing the right tank size to maintaining water quality and adding fun decorations, every step matters.
Take your time, enjoy the process, and soon you’ll have a happy little axolotl exploring their new home. Ready to start? It’s easier than you think, and your new friend will thank you for it!
References
How To Set Up An Axolotl Tank – The World of Fish and Pets
How to Set Up an Axolotl Tank : 7 Steps – Instructables
Axolotl Care Guide: Species Profile, Tank Setup, Diet & More – PetMeDaily
Axolotl Care Guide – Axolotl Central
Axolotl Care Sheet – Imperial Reptiles & Exotics
Disclaimer
This content on Bagrica is for informational purposes only. Consult a professional for pet care or farming advice. Bagrica is not liable for any actions taken based on this information.
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