Just sent this email in to Tetra:
I've had your 100 watt submersible heater for around a year or so. I noticed yesterday and today I lost 2 of my fish. Wasn't sure what the problem is, so I went to go start deep cleaning the tank and noticed the water was very hot to the touch. Looked at my thermometer and it was so hot it wouldn't register. I had to put a different thermometer in, and when I did it registered 95 degrees!
This is unacceptable. What can you do to make this right? Please let me know if you want pictures, as I took plenty of them.
Very pissed off right now