So far the RD and EBJD ignore each other but I am home all day to keep an eye on them. I realized by everyones advice I need to go bigger. I think I may try to find a marm, really like the coloration and pattern. Next question is does anyone know where to get a smaller one? I have found them at 8-9", but wanted to start out smaller, maybe 5-6 inches. Everyone in the tank is in the 4-6" range except the Bleekeri and Pleco, so I didn't want to go too big to start. If that is a bad idea, let me know. I am just getting into pikes and can use all the advice I can get.