You can keep feeding the same food. I would start a harvesting program, i.e. start removing fish from the pond. Take out any large CC that you catch and don't release any. Remove 10 pounds or more of LMB per year too.

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).