I live in a subdivision on a 25 acre pond. I've been feeding off and on for about three years. The past few months I've been feeding on a regular basis after reading this site. The problem is this pond had around 200 sterile carps put in about 10 yrs. ago. When I feed (bluegill, bream, a few cats) about 20-30 carp come in and suck down all the food. These carp are also about 15-20 lbs. each and go nuts during the feeding, churning up the water and they seem to be the only ones getting fed. Any suggestions, and could this many carp of this size actually be a bad thing?