Marina Plastic Thermometer with Suction Cup

I had this thermometer in my betta's tank. And I just found him trapped in between it and the tank wall. I would never recommend this thermometer to anyone.

A great thermometer, with the safe temperature range printed on it, which is a great quick reference feature. This is in a pretty small tank, and keeps a very low profile, which I (and probably the fish) appreciate. The suction cup is good for acrylic, it doesn't scratch like the magnetic ones do.

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It does not display the correct temperature. The suction cup also does not stay attached to the tank for longer that a day or two at a time.

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