If you have the right kind of soap, and the right water temperature it shouldn't hurt them as such. But that doesn't guarantee that they'll like it. And most animals will try to get away from stuff they don't like.
no, guinea pigs cannot live with these animals, and yes, guinea pigs will be hurt by wild mice. guinea pigs should live with other guinea pigs, and wild mice should stay wild.
no, guinea pigs could hurt the gerbils by accident (big size difference!)
No wood chips will not hurt your guinea pig and are often put into their cages for bedding.
yes but i would wash it first
It's NEVER a good idea to wash you're guinea pig because it can easily give them a cold or pneumonia. Although you can buy a certain type of wipes for guinea pigs at a pet store that you can wipe them down with. :) Hope this helps you :) I have had two guinea pigs also and this is what we did. It worked fine :) Make sure they are FOR guinea pigs though. :)
Guinea pigs are fine with towels, it doesn't hurt or annoy them in any way. Guinea pigs love soft materials so you should use them especially when cuddling them!
Guinea pigs can eat watermelon rinds and it is a awesome treat.
No try using baby soap to wash them. Guinea pigs really dont need bathed though because they are like cats and they groom themselves.
No guinea pigs cannot there wouldn't be enough space and guinea pigs aren't supposed to use exercise wheels that are usely in hampster cages (because they can easily hurt themselves).
Because guinea pigs are allergic to pine and cedar, it can hurt their lungs when they inhale it and cause upper respiratory problems... something like "guinea pig asthma"
No you can't use human soap, you should use soap made for small animals like guinea pigs.
I would have to say fleece is better. It cuts down on the dust for guinea pigs, the bedding does not get stuck in their fur, it is easy on their feet, and the top always stays dry. Note: Do not use regular detergent to wash fleece. Use vinegar and a gentle, scent free detergent (like oxy clean or tide free). Also, fleece is more effective if your guinea pigs' cage is large and there are not many guinea pigs (1-3 guinea pigs). MAKE SURE YOU GET EVERYTHING OFF THE FLEECE BEFORE YOU WASH. Your guinea pigs will be as happy as ever with fleece.