Thanks for the replies. Time is no factor but money is. The pond won't be drained and deepened. It is what it is. I can probably get the owner to foot the bill for fathead minnows.
You mentioned in your first post that the pond is in michigan and it was fed from the outflow of a large lake.
Before you put any fish in I would put in some traps and see what has found it's way in there from the large lake above it, even though the outflow is screened that's no guarantee.
