WEll . . . you can do it, they are the same species but not the same subspecies. I suggest if you want to breed colombians get a pair of them, if you want to produce guyanese get a second guyanese. Most people frown upon making mutts such as this. Even when people do this with great thought they generally have reason to do so besides they got the wrong snake i.e. trying to make an albino bcc etc.

Also you seem new to boas, so I don't mind telling you that a Colombian is better beginners snake than Guyanese. You can make more mistakes and they will still be OK. Also if you have never had a boa before you have a long way to go before breeding. Read everything you can now while your snakes are little. If you can manage to raise a pair of colombians to adult size in a healthy way, and if you can get your female in tip top shape, there's no reason you can't breed. But generally sucessful breeding is accomplished by more advanced boa owners.

Good luck,
Caden

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