My rat Roadie is having some odd symptoms lately. On the corners of his mouth it seems that he has scratched there causing cuts on both sides of his mouth. He doesn't naturally bite down his nails so I do have to trim them. He is about 5-6 months old. I also noticed some redness in his poo. Not sure if it is blood..(it looked like blood. And I don't feed him anything red) But it had some mucous in it. He does have little colored wood blocks in his cage that I bought from the pet store. Some of them are red. I'm a little alarmed that something could be wrong with him. Also any tips on keeping nails trimmed down?