When I had puppies that were being weaned, I chopped up puppy dog food in a blender (Osterizer)with infant formula to make "mush". I slowly decreased the grinding time until they were eating the full sized puppy dog food pieces. Then I slowly reduced the amount of formula until they were just eating it dry.

If more food was needed than a coffee grinder produces, maybe try the blender?

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).