Well, I thought I had it working, but ive just had chance to work on the project again and found that when submersed in the aquarium (waterproofed obviously!) the thermomitor temp (tube type) shows a steady 25 C, yet the sensor on my project is all over the place (even have it in a bag in case of water seepage etc) it varies from between 22 to 28 degrees! and in a large body of water, there is no way the water temp can fluctuate so wildly (roughly 150 UK gallons)

So I am at a loss, as the code is based on other peoples posts and I thought it was working fine, but testing both sensors I still get the swings (Arghh!)

I am seriously getting annoyed with these sensors but with both swinging so much, it leads me to think its something in either my code, or getting some errenous readins through the breadboard etc.

Does anyone know if breadboards will cause these variations? as I have read somewhere that breadboards arnt exactly the greatest things etc.

Any ideas would greatly be appreciated!