Axolotl lungs are relatively simple compared to mammalian lungs. They are elongated, sac-like structures located inside the chest cavity. The inner walls of the lungs are lined with folds that increase surface area for oxygen exchange, though this surface area is far less than what you’d find in mammals.
Axolotls don’t have a diaphragm, so they rely on gulping motions and body movements to push air in and out of their lungs. Unlike humans, their lungs are not the primary way they breathe; instead, they serve as a backup respiratorysystem, working alongside the gills and skin to keep the axolotl supplied with oxygen.
FAQs
At What Age Do Axolotls Start Using Their Lungs?
Axolotl larvae rely mainly on gills and skin for oxygen exchange. As they grow, their lungs develop, and by the juvenile stage (a few months old), they begin practicing lung breathing. Gulping at the surface becomes more common as they mature, though gill breathing remains their primary method.
How Often Do Axolotls Use Their Lungs to Breathe Air?
Axolotls use their lungs occasionally, not continuously. How often they gulp air depends on water conditions, oxygen levels, and the individual axolotl. In well-oxygenated, clean water, they may only rise for a breath every few hours or even less. If the water is warmer or has lower oxygen, they will use their lungs more frequently.
Is It Normal for My Axolotl to Swim Up and Gulp Air?
Yes, it’s perfectly normal. Swimming up to gulp air is a natural behavior and doesn’t automatically signal a problem. In fact, many healthy axolotls will occasionally float to the surface, take in a gulp of air, and return to the bottom. Most people often find this behavior charming, but it should only raise concern if it becomes very frequent or is paired with signs of stress.
Why Does My Axolotl Float After Swimming Up and Gulping Air?
Sometimes, after filling their lungs with air, axolotls may float temporarily. This happens because the swallowed air increases buoyancy. Normally, they can release the air by burping it out or letting it escape slowly. Persistent floating, however, may indicate digestive issues, stress, or a problem with water quality. If an axolotl struggles to stay at the bottom, it’s worth checking tank conditions and diet.
Can Axolotls Survive With Only Their Lungs if Their Gills Are Damaged?
Yes, axolotls can survive using only their lungs, but it’s not ideal. Their lungs are not as efficient as their gills or skin at extracting oxygen, so relying solely on lung breathing can put stress on their body. Damaged gills may regenerate over time, but if water conditions are poor or infections occur, long-term health issues are possible. Good water quality and low stress levels are essential for healthy gill function.
Why Does My Axolotl Keep Going Up for Air More Than Usual?
Frequent trips to the surface for air can be a warning sign. Common causes include:
- Poor water quality (high ammonia, nitrites, or low oxygen levels).
- High water temperature, which reduces oxygen availability.
- Stress or illness, affecting how the axolotl uses its gills.
If your axolotl suddenly begins surfacing much more than normal, test the water parameters immediately and ensure the temperature is within the safe range (16–18°C / 60–65°F).