i just stocked a 1/2 acre pond with 20 blues that weigh from 5lbs to 30lbs last year and did not expect them to eat at all but to my surprise, they all came up to eat. it took them about 3 weeks to learn what the koi were doing but once they started they didn't stop. they did stop after the water temped dropped some in october but started back up around may 1st. those big ones are fun to watch. my fish are wild so i think they may be more aggresive. good luck. i also buy my feed from tractor supply!
