2 things I wonder
- I think you would have to acclimate the M and M to pure freshwater, that is to put them in a tank somewhere and gradually dilute their pure saltwater environment to freshwater. There is a forum member that has done this with tarpon, redfish, and a few others. Over the course of several days at least. He may have done this with mullet or mud minnows as well, or just thrown them in, can't remember. I would probably just put some in the pond and see what happens. I know they can tolerate fresh water, just not sure if they can tolerate the abrupt shock of salt to pure fresh.
- I would wonder about speed of prey too. Not to be a saltwater snob but if you tie the tails of a one pound mullet and a one pound bass together----- that bass is going for a ride. That's more strength though.... And bass are fast for short ambushes.....
I also wonder if you made these the bass primary diet if they metabolically could handle the high oil content of these fish. In humans you could induce pancreatitis with rich fatty foods. Since evolutionarily these fish haven't been a forage base for the bass, maybe that's an issue.
I lied, I actually wondered three things
I'm over thinking this, throw those suckers in there and let us know what happens