if you guys remember the post 'can pacu fish break tank', then you would know what i am saying. i have added the pacu to my 1700 gallon pond. but it hasn't been eating for a week, except for a small piece of liver. after adding it to the 1700 gallon pond, i tried feeding it pellets and liver but it refuses to eat. what should i do. it ate like a monster in the aquarium