I am happy both with Birdius, my "tiel" and Magoo, my IRN, but they don't seem to like each other. Every time the get together, they both get combative (open beaks and lungeing) and I have to separate them

Should I let them settle this on their own, keep them separated, or try something else? I would really like for them to get along together if possible.
Skippie
P.S. Both are young males (seven months old or less), caged separately, and both have their wings clipped.