My chicks are now two weeks old, but the person who pays the electric bills and does not love chickens snitched my brooder light! He says chicks don't stay at 90 degrees when they are raised by a hen - our 65 degree house should be fine! I have to admit, they seem to be ok - (they LOVE to be held against my polar fleece shirt now though). Will this lower temperature hurt them or stunt their development? I do cover their dog kennel with cardboard and blankets at night but am trying to give them as much day light as possible so don't want to cover them too much. Helpful advice appreciated!