About one week ago, my arowana ate three rosy red minnows in one night, a few dried shrimps the next day, another minnow the next night, and a few more shrimps the day after. It stopped eating the next day and the following day after it stopped, it started swimming near the bottom of the tank. It has now been about 5 days or so since it had stopped eating and began swimming at the bottom. Will it go back to normal? I've already gotten the water tested, and everything is fine. I didn't know we were overfeeding it til i started doing some research the past few days. I'm not sure if it could be some other problem also.