theres no need to be so biased or ignorant. carp are one of the most gracefull and intelligent fish in the world. I could say most people are fat lazy and poo way too much. now as for 50lbs? your thinking grass carp, theyre highly a highly illegal invasive because they mulch the plant life similar to cattle, eating up to 20-30 lbs a day, common carp dont get to be 50lbs on average, 57lbs is the north american record for a common carp just to put in perspective what your asking for. I say catch a small wild one and enjoy watching it grow out. 20lbs is a pretty big carp and I dont even know what kinda pond you would need for that.