Re: how to read strip thermometer?
The strip thermometer is simply not that accurate due to that heating and cooling the glass will take a will longer than the water inside your tank. (This is why we use windows in our houses, to insulate) IMHO a floating or one that hangs by suction cup inside the tank would be much more accurate, and also by looking a little harder will help you keep a better watch on things in your tank.
30 gallon cichlid tank
10 gallon live bearers tank
5 gallon planted tank