It's a short story since I put them in my smaller pond and had a turnover in that pond about 3 months later. If mmeory serves me I stocked them in late March and the wind stopped blowing for about two weeks that year and the pond turned over. No way to get aeration to that one without $$$. Stocked several thousand 60 day juvies and everything was going good until then. After the coon buffet on dead ones bodies where found the size small gulf shrimp. If they had made it though the summer they would have been good size. Not going to try it again until I have a pond that I can aerate. To many projects ahead of that though.