They can not have cedar bedding because it has toxins in it that can kill a guinea pig.
Depends on the Guinea Pig - also on the cage. I keep my guinea pigs in an open-bottomed cage.
No its not, i guinea pigs cage is way bigger. & you should not have the same size of guinea pig cage as your hampster.
because guinea pigs are aggressive
For two guinea pigs you need at least 7.5 feet of cage.
Yes, they can but not together WITH the guinea pigs.
dried up guinea pig pee.
guinea pigs
A net or cage
no
no guinea pigs cant eat peanuts
Yes the minimum for two guinea pigs is 7.5 feet so that's a good cage.
Most likely because they may not like their cage or was enjoying what they were doing... unless you can get in a guinea pigs mind no one really knows why.