One reason you may not be getting a "ton" of responses is...this is a pretty common thread topic. Do a search...and I think that you'll find much longer more comprehensive multi-page threads.
Here's an example of a food cost specific topic
http://www.monsterfishkeepers.com/f...6532-stringray-food-costs&highlight=food+cost
Similar topics:
http://www.monsterfishkeepers.com/f...spend-per-month&highlight=food+cost+per+month
http://www.monsterfishkeepers.com/f...-feed-your-fish&highlight=food+cost+per+month
Thanks buddy, i was surfing arround and the thought just came to me to see what there was for comment! its all over the map i see. as for my pond, there still littler in comparison to most, the biggest fish for now in there is the 22 inch pacu. other then that a few little oscars and some cats that will defonetly outgrow him.