I put a thermometer with a probe about half way down in between my egg crates and have a temp of around 90 but down in the bottom its around 110. Does that sound right or is it to hot on the plastic??
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 side