Thanks for the info guys, I think I am going to try to locate some brood stock come spring. I know of a local lake that has them so they would be toughened up to this northern weather, I may have to build another smaller pond next to the main one just to put these in and observe as well as feed train them before moving them to the main body. I had planned on doing this for a forage pond also, wouldn't hurt to have 2-3 of them around for projects eh??