I think you got good advice from the biologist. That will give a lot of forage for the bass. As greatwhite mentioned, you might also think about draining or poisoning the pond. There are a number of ways of doing it. A rented, or purchased, trash pump should drain it in a couple days. Liming the pond at that point will kill whatever is left. You can also search this site for rotenone, which will kill the fish in the pond, but is non-toxic to most other life. I believe you need a licensed professional in KY for rotenone application.
I personally like smaller ponds, and would rather have two smaller ponds than one slightly larger pond. It gives you more options.
Smallies will work, just not in the presence of largemouth. You'll need a long term forage base like bluegill to keep them going. They just aren't as easy to manage as largemouth.
We have a lot of people here on the forum who have experience with your type of issues.
By the way, how did the greenies get in the pond. After you get rid of them, is it possible that more can get in?
Ken
