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What Is In The Bottom Of A Fish Tank Thermometer? [Solved]

There is only a small suction cup on the upper part, and the bottom is a pure glass thermometer. The water temperature meter is filled with dyed kerosene. Once the suction cup of the water thermometer is loose, it will fall to the bottom of the tank.13 Jul 2020

How to check fish tank thermometer accuracy!

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The WORST Thermometer for your Aquarium - DO NOT BUY

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How to: Aquarium Heater Setup & Use

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