They are on aspen Becky, and the hairless is just under 230 grams so could that be why? I know that i need to separate her until she gains another 50 or so grams and I am doing that today.

Im not sure about the greasy part, they do not look like it in person? Maybe my photo taking stills are causing it? Now that you mentioned it my camera makes everything look a little yellow, which could be why you thought it was pine and not aspen(Premier pets brand)?

Ive also been meaning to ask, i think ive heard of you using Dustoff to prekill or before you freeze rodents. Im not 100% sure that it was you that said it so that is why I am asking now if that is ok to do?