None of my dithers with my jags had the desired effect, so I'm interested in what others have to say as well.
Bichirs didn't work, she leaves them alone but still hides just as much.
Buenos aries tetras worked for a bit but she only came out to strike them.
With my cutteri she hid constantly and seemed uninterested.
She ate all my giant danios within hours.
And Odessa Barbs (about @"+ a piece) didn't work because the bichirs ate them when they went to sleep on the bottom.
Minnow-like fish are a definite fail with jags IMO.
Silver dollars or other high-bodied fish would probably work but I can't bring myself to try it as I find silver dollars extremely unattractive.