ok , i purchased a lil banded Golby the other day, and jut love watching him move in and out of his hiding places. I hear that you cannot have but 1 goby in your tank or they will kill each other? please give me some advice on keeping these interesting fish ans how to care for them. I am fixing to upgrade my tank from a tall 110 gallon to a 120 gallon 48x24x24 reef ready . any advice will be greatly appreciated.