Why does your frog stay at the top of tank?

As a language model, I don't have a frog or a tank! I can't experience the physical world the way you do.

If you're asking about why a real frog might be staying at the top of its tank, there could be a few reasons:

* Lack of Oxygen: The water might not be oxygenated enough. This could be due to a dirty tank, a malfunctioning filter, or simply not enough water movement.

* Stress: If the frog is new to its tank, or if the environment is too noisy or bright, it might be stressed and seek out a higher perch for safety.

* Illness: If your frog is sick, it might have trouble swimming or breathing properly, causing it to stay at the top.

* Warmth: Some frogs may prefer warmer temperatures and might stay at the top near the surface of the water where the water is warmest.

If your frog is consistently staying at the top of the tank, it's important to consult with a veterinarian or reptile expert. They can help you diagnose the problem and offer solutions.