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Danielle8118
Hi. A bit of a disaster happened. I filled the aquarium with almost 1000 liters of water and accidentally broke the thermometer with my elbow while handling it (it was lying on the straps), and everything fell into the tank. I siphoned out everything I could... but I'm still having doubts. What is it made of? It doesn't seem to be mercury - the balls are solid and black. It was either this type of thermometer or that one (I threw it away immediately and didn't remember exactly which one).