1) We don't know if they are pure. I was assuming they were based on your previous posts, but there's no way to know for sure from a picture unless they were from a reputable breeder who told you they were. Since you'd used the term "Guyana" I was making the assumption they were pure Guyanans. They do LOOK pure, but we can't KNOW for sure yet. I would go back to the seller and get as much information as possible. If that person doesn't know anything, ask him/her who the original breeder was and if they might have contact info so you can go to the source.
2) I absolutely would NOT pair the male with your Salmon female. Most people in the boa community will not appreciate a cross. Your best bet is to keep them as pure as possible.
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