I'm gonna say your glass one is better. Any coralife thermometer I have ever seen has read like 10 degrees off. I just have the stick on ones on every tank.
msjinkzd;3793043; said:I use an infrared temperature gun instead of thermometers. Just have to make sure you are measuring the water not the glass.
msjinkzd;3793043; said:I use an infrared temperature gun instead of thermometers. Just have to make sure you are measuring the water not the glass.
Ditto, and I usually stick with fish that are near bulletproof. I'm a sucker for low maintenance.BadFishPa;3795126; said:I have a sticker on the outside of the glass thermometer ,,was a $2 investment and has been on my tank 7-8 yrs..I have checked it with other types and it has never varied more than a couple degrees. im sure heaters fluctuate too so im staying with it. Thats close enough for me .. lol
msjinkzd;3793043; said:I use an infrared temperature gun instead of thermometers. Just have to make sure you are measuring the water not the glass.