I have some pet koi in my fish pond - they are a type of carp
That's cool! I'm not a big fan of carp or really any fish I can't eat. 
The grass, silver, bighead and black carp are all major sources of food in China
Really? That's cool. I've heard of people eating fried and it's very big in the south. 
Yes in the south they eat everything fried - chicken, catfish and even chicken fried steak