Every 1 week. Or when it starts to smell.
Once a week.
Yes, with the proper housing.
It shouldn't!!! You must change it more often! Daily!!! would you like your food to be slimey???
Yes guinea pigs can eat applesauce. In fact people often syringe feed their guinea pigs applesauce after surgery, or when they are sick, to prevent starvation/dehydration.
yes
All the time.
3 days
I dont have a clue!
No!!!!!!!They are actually part of the rodent family.
No.
I have three
No. Blindness probably occurs with the same rarity in guinea pigs as it does with other creatures in the animal world. Also, albino guinea pigs don't necessarily suffer blindness any more often than non-albinos.