the CK is an awesome fish. He was outgrowing my tank and they (aquarium center) said they would place him in the pond, so I drove him up. Then they told me when I got there that the RTC had a 12" fish in his mouth and they were afraid he would eat my CK. So, now he's in another tank. Thought I was giving him a better life. But he is an awesome fish, great eater and not that shy in the tank...all over while eating. Pretty bummed he is still there....