I have 3 rats in this tank (30 L) 2 females and a male. I think one of my females is pregnant, she's getting huge and her nipples are showing more and more each day....the other female I'm not quite sure yet but seems to be gaining weight. The problem is with the male. He was hit/scratched in the eye. It was like he was poked in the eye and didn't want to open it very far and it had like tears/watery like....so I wiped it out/off with water three times a day for 2 days and it seems to be ok. It's wide open and bright today with no tears or water by it. Did one of the females poke him in the eye because she is pregnant? I moved the male to his own tank for now to keep an eye on him...just in case one of the females is being mean to him. Is this the right thing to do with him?