I'm sorry for your loss. I bought to ck's about 3 days apart from each other. The gold one (Willie, I got him first) is about 4 inches smaller than the reg one (Conan). Conan will eat anything. Sinking pellets, silversides, shrimp, you name it. Willie is still a bit finicky and will only eat prepared when the lights are out, and even then, Conan usually gets most of it. The only way to ensure a good diet for Willie is to put feeders in unfortunately. I tried to put Conan in with my O's, and I got a shimmy from one that I didn't like, so that didn't work. Willie is going to have to start standing his ground or Conan is going to have to find a new home.........