What is your incubation temp?

[NickMyers03]

that is true...bricks that you can pick up at lowes or homedepot for cheap work just as well if not better... you can take them out as you get more eggs but the more area filled up in the incubator leaves less room for temp change

[Larry Suttles]

88 degrees

[West Coast Jungle]

I don't know if this is done a lot, but a breeder I bought my albino from filled his incubator with water bottles. It takes a lot longer for 90 degree water to warm up or cool down, so it stablizes the temperature in case there's fluctuations. That water is always giving off 90 degree heat, even during power outages, or crappy hovabators.

I also put tubs with rocks and water in my incubators which becomes my bottom shelf. The tubs have holes near the top so they help stabilize temps and humidity. It is very dry where I live so I am always concerned that it will dry out in there. I hand squeeze all my vermiculite until ALL the excess water drips out(good excersize LOL), then put it in the incubator for a day or two for temps to adjust and then it's ready for eggs. Alll my beardie and BP eggs have had 100% success rate with this method. Although I am concerned they may dry out I am aware that too much water(in the vermiculite) is the killer!

[Ginevive]

I definately have the water bottles in mine. They help a lot.. there really has been little to no fluctuation.
I have a weirds system that I will attempt to describe. My tubs are pretty prone to condensation with the variating between their inner temperature (the incubating temp) and the FW and its probe. Every 2 days I open them up and wipe off the excess condensation. It also seems to give the eggs some fresh air. I do it fast, and there is really little variation in temperature while I do so. I actually melted 2 small holes into the egg-tub lids before putting the eggs in; it helps to reduce the condensation also. But my medium (verm and perlite) is not sopping wet; like Raul, I wrung it out till all of the water was dripped out.. it still creates the condensation, but by wiping that, and sometimes adding incubator-temperature water into the corners of the medium (only had to do that once) things are stable and going good! It might be a little different than the norm, but it is working so far.
I also think that the opening of the tubs mimics what an incubating mom would do in the wild; she leaves the eggs for an occasional drink or to defecate. So I would guess that the temp would go down a little during that time; but again, the room is warm where the eggs are and it Never goes into the danger zone.