I’ve been a little worried about one of my axolotls. Forgive me if I sound a little ignorant, but it seems to be 'off balance' while swimming/walking and not able to keep its back side down. It will also stay in what looks like an awkward position (backlegs and tail upwards) for long periods of time.
I have checked water quality (Nitrate/nitrite, ph, etc = all normal) We don’t have any small rocks or sand at the bottom of the tank and we check the water quality everyday.
This sort of behavior has been happening on and off for the past few weeks. This axi will have some days where it seems 'happy' and normal and then days where it will be 'off balance'. Even though my axi displays this strange behavior (and seems rather frustrated when it can’t walk/swim properly) it still has a normal appetite.
Does anyone have any suggestions as to what might be wrong with my axi?

I have checked water quality (Nitrate/nitrite, ph, etc = all normal) We don’t have any small rocks or sand at the bottom of the tank and we check the water quality everyday.
This sort of behavior has been happening on and off for the past few weeks. This axi will have some days where it seems 'happy' and normal and then days where it will be 'off balance'. Even though my axi displays this strange behavior (and seems rather frustrated when it can’t walk/swim properly) it still has a normal appetite.
Does anyone have any suggestions as to what might be wrong with my axi?