aye, they are gluttons, but I've never heard or seen a pike eat itself to death unless the fish was too big and got stuck. But thats not very often. I think you lost your xingu I and cincta to something else...just a hunch. Totally agree about gettin them offa feeders too. It can be a pain, right now mine have decided that they don't want any prepared foods, only nibbling, kinda annoying. They go through these moods quite often though. Anywho, feed em, they grow fast.