hey everyone I got a copperband a couple weeks ago, he’s been a great eater. He loved brine and sometimes mysis, but recently I tried live blackworms to try and get some weight on him. Now he won’t touch anything but the blackworms. He’ll take the mysis, chew it and spit it out. Any advice on getting him to eat a mixed diet? And how concerned should I be if he doesn’t eat others for awhile? TIA