Is it dangerous if my thermometer breaks in my fish tank?

Answer:

Although Mercury, the shiny metal that forms the ‘bar’ of the thermometer, is poisonous it does not dissolve readily in water. So your fish will be safe for a short time.

What you should do when you find a broken thermometer is first move your fish to another holding tank or receptacle. Then remove all the water from the polluted tank. Finally wash the gravel in the tank thoroughly and then clean the tank itself before replacing everything. Be careful of broken glass from the thermometer, of course!

Make sure that, if your hands come into contact with mercury, that you wash them carefully. Generally mercury is only poisonous if swallowed in a relatively large quantity but it can also penetrate your skin if left in contact with it long enough. Wear gloves when cleaning your tank and the items in it.

Follow the usual guidelines of letting the water settle before reintroducing the fish and all should be well.

To replace your thermometer we suggest a Digital Thermometer, which is safer and easier to read.

The Original Post is Located Here: What to Do When My Thermometer Breaks in My Fish Tank

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