Welcome to PBF Daytrader!
Beautiful pond you have there. Exciting time for you and your wife!
My advice is "go fishing" using various baits and techniques to see what you can catch as a first assessment as to what type of fish you have. Post a few pics of what you catch.
Lots of folks here with experience they are willing to share. We are looking forward to hearing more about your pond.
Again, welcome!
Bill D.