I wouldn't do it, and I'm personally against housing corn snakes together, especially in a cage size like that. Plus, there are no hides, different water bowls, etc. The snakes are just put together, and the one new snake should be quarantined! I mean, even people who are for multiple snake housing I think would say that it is a little much, and I've never known corn snakes to be really a part of that like garter snakes, kenyan sand boas, etc.
He seems like a professional breeder (has a banner in the background). You would think he'd know better.
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I take back the banner/breed thing!! The banner said Corps not corns! Ha ha!
Update:
He's doing it on purpose. It is an experiment lol![]()