How does an increase in the temperature of a fish tank affect the solubility of oxygen in the water?

An increase in the temperature of a fish tank reduces the solubility of oxygen in the water. As water temperature rises, its molecules move more vigorously, making it harder for oxygen molecules to remain dissolved. Consequently, warmer water can hold less oxygen, which can negatively impact fish and other aquatic organisms that rely on dissolved oxygen for survival. This decrease in oxygen availability may lead to stress or even harm to the aquatic life in the tank.