RLewis,

That's an interesting thought. I've never heard of that but it sure seems to me that it couldn't hurt anything (except maybe your budget). At the worst, if the fatheads aren't eaten during the winter, they would be eaten the following spring when water temps go up. I'm trying something this year somewhat similar, i.e. stocking small rainbow trout. Mostly, it's for the fun of catching and eating, but also for the winter time forage for larger predators. I think you may have a good idea there which at worst only costs money.