Holy Salt and Holy Water should save the pond once you take it's temp. wink grin The shotgun might not do any good unless you've got silver pellets in it.

Take the temp at the surface, 1' depth and every foot or 2 feet down. That will tell you if a thermocline is set up, or if it's not set up.

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).