to be honest i would say its 10+ hotter on the surface. those probes are ok but the best way to get a accurate temps is with a temp gun.... surface temps around 90-95 will be perfect for them if its a tad bit higher just make sure the can climb higher or be allowed to have a cool sidejamesraby":2exh4zzi said:Using a human heating pad on high...I'll bump it down to medium. I thought 90 was perfect...