hi everyone, so i bought two dragon goby fish. I love them, there great active fish during the day and especially the night. When i first got them they would always stay together, then after two weeks they seperated and started to be territorial. WHich i already knew would happen, but almost 3 months later they are now next to each other literally side by side. I hope one is not sick or could they be breeding???? Ive tried to find some information on this but coudnt find anything. Need some advice please. Also is there any way of telling the difference between it being a male or female??