A new rat who I introduced yesterday to my group of 5 others has started bleeding on her foot. I think it's coming from between her toes but can't work it out completely. I have got her in a carrier and have cleaned the wound with salt water and put some corn flour on it. It's too late to take her to the vets. Do you think I need to in the morning? She's cleaning it herself and the bleeding has definitely calmed but this is my first rat injury so naturally I'm panicking!