How to Check the Water Temperature of an Aquarium

One of the most important processes of taking care of your fish involves checking the water temperature of your tank. If the water's too hot or too cold, it can stress the fish and attract parasites, which may kill your fish. You need to pay special attention to the water temperature when you're changing the water in the tank.

Difficulty: Moderately Easy

Instructions

1. Fill up a container with lukewarm water. You can use tap water to refill the water in your aquarium.

2. Use a a glass or plastic aquarium thermometer to check the temperature of the tap water you're using to refill the tank. Let it sit for a minute and then take the temperature reading.

3. Adjust the water until it reaches the current temperature of the water in the tank. You may need to add more hot or cold water depending on the current reading from the thermometer. After the temperature stabilizes, you can add it to the aquarium.

4. Check the thermometer each day to make sure it stays in a safe temperature zone for the fish you have. You should have a thermometer in the aquarium at all times. You should check daily in case you have a faulty heater.

Tips & Warnings

• Remember to treat the water before you add it to the aquarium. You'll need a water conditioner and a solution to remove the chlorine.
• When you purchase your fish, ask for a care sheet that specifies the ideal temperature for that particular type of fish.