Why does your axolotl keep gulping air and why does it have black parts at the tip of its tail at its mouth and at its nails and it gills a bit the gills are really short so hes going to evolve soon?

Your axolotl may be gulping air due to low oxygen levels in the water or because it's a natural behavior, especially if it feels stressed or is exploring its environment. The black parts at the tips of its tail, mouth, and nails could be pigmentation or a sign of stress or illness. As for the short gills, while axolotls typically retain their larval features, a change in gill size can indicate a transition towards metamorphosis, especially if environmental conditions are pushing it to evolve. It's important to monitor its water quality and overall health to ensure it thrives.