Bringing this thread back up because i finally got my pet store to order me fish. Got 2 archers, another dragon goby, and another g tile. Well the existing g tile eel is pretty much an ******* lol. He locked on the dragon fishes face, I separated them and it lived so I moved his cave to "reset his territory". Well then he went and started fighting with the other morray which is a 3rd his size. He's snapped at the 5" archers but they're too quick. This thing is about 14" long and about the diameter of a quarter. I think he was in the tank alone for too long and has claimed the whole tank as his therefore attacking everything. I don't know what to do but these fish aren't cheap but I didn't set up a 500$ fish tank for ONE 30$ eel because he wants to fight with everything. Anyone have an ideas on how to get him to calm down?