Also, I will say that I prefer to have ALL my snakes eating rats. The only issue I will run into with any of my projects will be the hognose project. Hatchling hoggies are TINY and will surely need to start on mouse pinks for the sake of being too small to take even the smallest of rat pinks.

If you're not breeding, and your colubrids are of enough size to eat rats, and you're able to get them to take them, it's much simpler having them all eating the same thing.