My little fella needs a new crate. He's been using a cat carrier *face palm* which he still likes to sit in. But he's a growing boy, and though he is comfortable now, I feel like it's going to be too cramped for him.
What size should I aim for?
He's a Shiba, 3 month old.
We were looking at this one:
but can't decide between the 300 and 400 series.