About a month ago I was bass fishing at a nearby lake and saw a 12 inch orange and black comet swimming around by the shore. I quick grabbed my net, went in after it, and caught it. I brought it home and put it in my 450gal backyard pond. It never came up for the food pellets so I assumed it was eating the plants, minnows, or freshwater clams I feed my koi and other fish. Every winter I set up a 150gal indoor tank. I decided to put in the comet, 5 6-7in koi, 1 12in koi, and a few other comets to start about 2 weeks ago. All of the koi and other comets eat whatever I put in the tank, but the big comet seems picky. I tried corn. It seems to eat some of it, but it almost sucks it in then blows it back out half the time. I also tried small pieces of soft carrots, which it nibbles on, but doesn't really eat any large quantity of. Any thoughts on what I could try?