Fiepser is my oldest Guinea Pig. He is now about 5 years old.
I don´t know exactly how old he is, I got him from the local animal shelter a few years ago and he was so little and so shy. He always hid in the hay and slips through my hand when I want to catch him, because he is real fast and smooth.He is still not very heavy (only 900 g), and still very shy (as shy as he looks in the first picture ;o) ), but he trusts me and eats from my hand.
I love my little Fiepser :o)