Try Bloodworms Cam. You dont have to thaw them throw a chunk in, most fish cannot resist them. My Gold Base wouldnt eat pellets at first, he couldnt eat the blood worms fast enough though. Eventually he started eating NLS but it took a while. I just offered it to him everday. As far as the poop goes throw a bit of epsom salt in the tank with him, do a large water change the next day, that will clean him out. I do that with all my fish when I first get them, especially wild caught and from overseas. Good luck with him bro, hes a nice fish.