Hi and welcome!
Please keep your piggies separated until you know the gender! You can find great video or screen saver step-by-step guides for posting pictures at the top of the help desk.
For best effect, please angle the relevant bits towards a good source of light. The clearer and sharper the picture, the better! Sometimes, it helps if you hold the piggy and somebody else takes the picture. If you can, make use of the close up option. You are welcome to post any pics in our pregnancy&sexing section.
This is the best website for sexing:
http://www.cavyspirit.com/sexing.htm
Please weigh your little URI piggy daily as long as he isn't out of the woods. Sweet corn (mini and cobs) is a good energy dense food. If he is still losing weight, you may want to consider hand feeding. For more tips and knwoledgeable ongoing support, you may want to open a thread in our helath/ilness section.
I assume that the little one is still on baytril? This antibiotic is well known for having a real impact on the guts and suppressing the appetite. You will want to additionally give probiotics like fibreplex or bio-lapsis to help the gut flora, a pinch about 1-2 hours after the antibiotic either on a bit of veg or dissolved in a very little bit of. The appetite should return once the course is finished. Otherwise, contact your vet re. another antibiotic.
Keep your diarrhoea piggy off any fresh food until the pellets have securely firmed up again; it can well be that she has never had veg before in her life and her guts are not yet adapted to them. Once you introduce them, do so slowly one by one.
Here is our food thread:
http://www.theguineapigforum.co.uk/...veg-and-fruit-list-with-vitamin-c-grading.42/
You can find lots of information on pretty much every aspect of guinea pig care at the top of our Care sections, but you are welcome to ask any questions you may have.
With members from all over the world, you can help us a lot always in giving you the appropriate advice and recommendations straight away by adding your state to your details. Click on your username on the top bar, then go to personal details/location. In the same section, you can also upload your avatar, the picture that always appears in every post.