Thanks for the reply Sunil

I caught one 4–5-pound bass last march before I added anything. I have added 15 bass between 2 and 5 pounds. Had a friend say he caught a 7plus out of there, but he is probably big eyeing a 5 pounder.
I also added 100 2–3-inch bass in October.

I added 100 foot of rock shoreline a couple months back and that seems like where all the bait fish hang out. I have also added a little brush to a couple areas.

I hand feed them Aquamax every night.

The pond did have channel cat, bullhead, green sunfish and at least one nice bass in it when I purchased it

Thanks for the help, everyone.