In areas that are too cold for Redear Sunfish, Pumpkinseeds act like them. I don't think Redear Sunfish (RES) will survive up there.

Agreed, you need a few fish in there to control the leeches. Snails are a problem too, and the Pumpkinseeds will eat them too. Snails are a part of the life cycle of swimmers itch.......

www.hoosierpondpros.com

[Linked Image from lh6.ggpht.com]
http://www.pondboss.com/subscribe.asp?c=4
3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).