The cardinal rule of quarantine: set it up before you need it. When your axolotl is sick or stressed, the last thing you want to be doing is scrambling to find a container and figure out water chemistry.
A quarantine setup is simple and cheap. Here's what you need and how to use it.
Why Quarantine Matters
Quarantine serves two purposes:
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For new animals — Any new axolotl you bring home should spend 30 days in quarantine before being introduced to a tank with existing animals. Ranavirus and other pathogens can be present in animals that look completely healthy.
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For sick animals — When your axolotl is ill, fungal, stressed, or injured, removing them to a quarantine setup lets you treat them without contaminating your main tank, monitor them closely, and keep conditions tightly controlled.
What You Need
A container: A 10–15 gallon plastic bin or a simple aquarium works. Opaque is better than transparent — stressed axolotls do better with less visual stimulation. Add a lid with ventilation holes; axolotls can and do climb out.
An air stone and pump: Oxygenation is critical. No filter needed in short-term quarantine — you'll manage water quality with frequent water changes instead.
A thermometer: Temperature is the variable you need to watch most closely. Keep it in the same 60–68°F range as your main tank.
Seachem Prime: For treating tap water and temporarily detoxifying ammonia between water changes.
A heater (if needed) or cooling solution: Match your main tank's temperature. If your house runs warm, a small fan across the water surface can drop temperature 3–5°F.
Water Management in Quarantine
Without a cycled filter, ammonia builds up fast — especially in a small volume of water. The protocol:
- 25–30% water changes daily with dechlorinated water at the same temperature
- Add Seachem Prime with every water change
- Test ammonia every 1–2 days — keep it below 0.25 ppm between changes
- Remove uneaten food immediately after feeding (if you're feeding at all)
This sounds like a lot, but in practice it takes 10–15 minutes a day. It's manageable for the week or two a typical quarantine lasts.
When to Use Quarantine
Always use quarantine when:
- Bringing home a new axolotl (30-day minimum)
- You notice fungal growth on gills or body
- Your axolotl has visible wounds or is being nipped by a tank mate
- You're doing a salt bath treatment
- Your axolotl is floating, severely lethargic, or showing acute distress
- You need to do a full tank clean or rescape the main tank
Salt Bath Protocol (For Fungal Infections)
One of the most common uses for a quarantine setup is administering salt baths:
- Prepare a separate container with dechlorinated water at the same temperature as the main tank
- Add 1–2 teaspoons of non-iodized salt per liter of water (not per gallon)
- Place your axolotl in the salt bath for 10–15 minutes
- Watch them closely — if they show extreme stress (thrashing), end the bath early
- Return them to the quarantine tank (not the salt bath container)
- Repeat daily for 3–5 days
Use non-iodized salt only — aquarium salt, kosher salt, or canning salt. Iodized table salt will harm your axolotl.
What to Keep Stocked
Keep these on hand so you're never scrambling:
- Non-iodized salt
- Seachem Prime
- Seachem Stress Guard
- API Master Test Kit
- A clean quarantine container with air stone
- A syringe or turkey baster for target feeding
The 30-Day New Arrival Protocol
Every new axolotl gets 30 days in quarantine. During this time:
- Feed normally and monitor appetite
- Watch for fungal growth, lesions, or unusual behavior
- Test water parameters 2x per week
- Do not introduce to main tank until the 30 days are clean
This protects your existing animals. Ranavirus has moved through the hobby and killed many established animals that were exposed to new additions that appeared healthy. The 30 days are worth it.