This is what I bought. Beekissed said to buy a water wiggler and put the probe insie it and lay it on top of the eggs. Then drape thermometer outside. It is more accurate than anything I have had. I wore it out and now need to buy another.It held steady for almost a week. I think it's user error.Meaning I think one of the times I bumped down I actually bumped it up.![]()
It's at 102 and 100 now, and the thermometer on the side wall is at 96. So I think I'm in the right direction. I'll check again in a few hours, and sit on my hands til then.

http://www.amazon.com/SODIAL-TM-Aqu...19981755&sr=8-4&keywords=aquarium+thermometer
I can't get my computer to post it but look up clown water wiggler on amazon. $1.25 + $ 2 shipping.
These have saved me because I had three different kinds and never could stabilize them. Beekissed said that this was the most accurate because it sits on the eggs.