Guinea pig food costs around $5 for a 5-pound bag, or about $5-$10 per month depending on the size and appetite of the guinea pig. Harnesses used to take guinea pigs for a walk or to play in the yard run $5-$7. read more
Your actual cost will depend on what breed of guinea pig you intend to buy and where you intend to get it from, but for our list, we'll use an average cost of $20. A Spacious Cage or House When you go to the pet store, you often see several guinea pig cages sitting on the shelves, but you need to really think about those. read more