piggy problems

I just took my piggies out their cage and put them in the pen so I could clean it out and one of them seems to be peeing a brownish coloured pee. What should I do? Is it anything to worry about? It also seems to be all over their tunnel.

My piggies are only babies I got them on Friday but I have extended their cage out to give them constant floor space. They just don't know how to use the ramp? I have covered it in veggies and they seem to stretch their bodies up and grab the veggies from the top then scoot back down. Has anyone...

One piggy of my pair is very nervous and doesn't come out much, her name is biscuit. And I got her out one morning to bond ( thinking it would make her realise I'm a gentle giant) and it went really well, until she went back in the hutch. So I left her a couple days only popping my head in to...