This is the second time I've been stuck with a rat pup after a failed feeding attempt. The first one got eaten the next day and I cried like a softie. I've decided to go ahead and keep this one, probably will get him a friend tomorrow. I've been doing some reading on rats. I plan on turning my 20 GAL tall tank into a house with multiple levels. I'm going to pick up the Tractor's Supply swine feed tomorrow. Does he look big enough to eat solid food? He's about 30 grams, eyes opened, can walk around. He hasn't shown much interest in the food when I've been home. What color is he? A blue? He seems pretty friendly. Makes the chattering noise when I hold him, and kisses my hand.