I dont really mind my kribs eating neons as they are so readily available and dirt cheap and besides i like a bit of "jungle rules" in my tank, I would probably be a bit more angry if they started munching on cardinals if i bought them, i think i`ll just buy three cardinals to start off with just to see how they go - and the tank doesnt have a red background, thats my bedroom wall at the back, im still in two minds wether to go with a plain black background or one with the sort of picture of logs/plants etc.?