I’m a new axolotl owner, and my axolotl has been floating around the tank, swimming fairly close to the top. I believe the floating is due to the swallowing of air bubbles, but I’m beginning to fear that she is bloated due to too much floating pellets. I recently went out of town to visit friends, and left my neighbor to watch my axolotls. I forgot to inform him how much to feed them, and I believe he over fed my female. I changed their water and have been keeping a good eye on them for some time, but she is still swimming around the top. What should I do?