Why does the water in a tropical fish tank become warm?

There are a few reasons why the water in a tropical fish tank becomes warm.

* The heater: Most tropical fish tanks have a heater to keep the water at the desired temperature. This is because tropical fish come from warm climates and need water that is between 75 and 85 degrees Fahrenheit.

* The lighting: The lighting in a fish tank can also contribute to the water temperature. This is because the lights emit heat, which can warm up the water.

* The room temperature: The room temperature can also affect the water temperature in a fish tank. If the room is warm, the water in the tank will also be warm.

It is important to monitor the water temperature in a tropical fish tank to make sure that it stays within the desired range. This can be done with a thermometer. If the water temperature gets too high, the fish can become stressed and may even die.