How do i stop my cannibalistic carp?

i have a ghost koi asagi carp. (asagi meaning erfly) it is abut 8-10 inchs long. it eats EVERYTHING i add into the tank. it even attacks things twice its size. Even a frog that could have ate it. it kept trying to eat its foot and eventually the frog died. so far, iv tried adding golden orfe, other carp, goldfish, minnows, plecos, shrimp, fiddler , freshwater crayfish, yabbies (electric blue lobsters), small sturgeon, eels, rudd, roach, perch (yes, perch! even the spines didnt stop it.) and many other fish. what do i do with it? its living in a 5 foot tank by its self as it is eating everything. so far there is only two fish other than itself, that i dont cl as fish. (they are two hillstream loaches that are about half an inch long that sit sucked onto the filter or under stones/ pvc pipe ect. I didnt know that carp were cannibals. i think i may just throw this thing into a pond to get rid of it.