thanks cjbs2003
actually I was putting the gold fish in for forage for the LMB as well as for hlping control the duckweek. My reasoning for this is, they actaully grow duckweed to feed goldfish and koi. im actaully mechanicly removing most of the duckweed and just using the fish to help once I get the upper hand. I know the grass carp dont eat the DW well, and i got them to help with other aquatic vegitation as well.
I dont plan on restocking any of the CC. IN fact I havnt planned on putting anything else in there unless I was advized to go ahead and add BG. with the exception of a few more mature LMB.