Instructions
Attach your stick-on fish thermometer by either clamping it or sticking it onto the side of your tank. If you have a clamp-on fish thermometer, ensure that the thermometer is at least half submerged under water.
Identify the three readings on your stick-on thermometer. Stick-on thermometers are incredibly sensitive to changes in temperature. As a result, they take three readings to eliminate any inconsistencies.
Add the three readings together and divide the number by three. Use this average reading as the general temperature for your tank, give or take two degrees.
How to Read Stick-on Fish Thermometers
A stick-on thermometer is often a popular choice to use as an aquarium thermometer because of its ease to install and cheap cost. However, stick-on thermometers vary from normal thermometers by recording several temperature ranges, requiring aquarium owners to know how to use these mixed temperatures to find their aquarium's interior temperature.