No Prob GOB....
I like goldfish myself the best. Great for flathead. Hearty, stay alive and on the line for a long time. I never thought about using the feeder fish. The ones I have seen are smaller than I have used. I like them at least 3" or 4" fish. Those fancy lookin orange and white ones work really good.
Guess in a pinch a feller could rob one of those fancy fountains around town.....
Andy