mxfj40
Aquarium Advice Apprentice
I purchased two different thermometers for my 34 g. tank. One is glass that goes inside and the other is the strip kind on the outside. The temp. reading on the inside one seems to stay constant at around 82 deg. The strip on the outside reads 78 deg. The pointer on my 200w. visi-therm heater is set at 76 deg. Which thermometer is giving me the most accurate reading? Is the strip on the outside affected by room temp?