Just thought I'd toss in that I have had a little over a week with my new CK and ABK. My CK is now my FAVORITE fish in the tank. I'm "neglecting" my gorgeous Leucistic Tiger O because the little guy (about 3.5-4 inches) just commands my attention. Great eater - loves flake (will eat it off the surface) and tears up the beef heart. I do have to kinda "hand feed" him the beef heart because his vision is so bad, but I think it makes him cuter. The African Brown is somewhat shy, but he never really hides (he will hang out with my beefy Synodontis in the cave occasionally). My Clown has never hidden since his introduction to the tank and has come over for feedings since day one. What amazing fish they are... I'm surprised I didn't get into them sooner! Wish I could post some pix, but I no longer own a digital camera.
Chuck