Were they feed trained fish? If you don't know, call the supplier and ask.

To start feeding, it's best to feed in the same spot in the pond, at the same time every day. The fish DO have clocks, and will be waiting for the feed once they get accustomed to it.

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).