Hello there, I have two male guinea pigs that are around 6 months old. Since I first got them one was a bit fatter than the other one. Now that they are growing up more that is more noticeable. The big one is not only much fatter but longer too. Then there's the little runt who has grown quite a bit but is not very fat (or at least as fat as the other one) and is light as a bird when I pick him up. He is energetic and playful but he is a pickier eater. The other one never seems to be full while this one is so curious that he can't sit in one spot long enough to focus on eating. He has seen a vet and they said he was healthy but I might take him back just because i'm worried about how much one is growing compared to the other. Has anyone heard of this before? He's not necessarily skinny but the other one looks like a giant marshmallow that came to life and this one just looks like a small bear cub.
Hi and welcome!
Guinea pigs have very different individual body sizes, shapes and a wide normal and healthy weight range; even siblings can vary widely. My two sisters Nerys and Nia were already 150g apart when I adopted them at 10 months old and this widened to 500g at the peak of their life. Energetic small group leader Nia sadly died not long before her 6th birthday, but big, greedy Nerys is still with me coming on to 8 years now, so they have both a very decent life span!
What I would recommend is to feed veg and pellets 2-3 times a day in smaller portions and in one bowl each per piggy spaced over a body length apart, so the food can be eaten in one go and the smaller piggy is getting its fair share. Hay should make up to 80% of the daily food intake, so your boys won't go hungry in the meantime. It minimises the problem of food hogging.
I can't say that I think highly of any vet that suggests getting rid of a pet on such flimsy grounds; that is not encouraging responsible ownership!
You may find the tips in these links here helpful in judging whether your boys are a good weight for their individual size and what a good, balanced diet is.
The Importance Of Weighing - Ideal Weight / Overweight / Underweight
Recommendations For A Balanced General Guinea Pig Diet
Here are more tips for new owners, which you may find helpful:
" Starter Kit" Of Information Threads For New Owners
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