So i get home today and see my tank temperature on the heater readout say 85.4 degrees. I was like holy crap! 8O I shut off the lights and put fans on the tank. Still the temp wouldnt fall. I felt the water, felt normal to me. STarted thinking maybe the heaters off because ive heard of them sticking on and messing up peopl;es tanks. So i ran out and bought a glass hydrometer. (Ive gone through like 3 of them now in the last 6 months, keep breaking) Put it in and it measures a hare under 80. I unplug the heater, plug it back in.....now it reads 82.8. WTF is going on here? should i talk to the manufacturer?