They don't actually like small spaces, that's actually a myth. That was started because in the dry season, their ponds start to dry up, and so they survive in small puddles for a bit. It would be like throwing you in a closet, never letting you out, and throwing you food daily. Would you survive? Yes. Would you be happy and like it? I don't think so! So, they like the space, its great for them! In the wild they live in rice paddies, which are actually quite large!