Hello everyone . I have something to ask. I have a freshwater aquarium of mixed fishes, like, dwarf gourami, tetras, barbs and danios. I realize one of my dwarf gourami is bloated up. I am not sure if it's sick or pregnant. From what I know, according to the shop I bought my gouramis from they are all males. Can anyone tell whether it is a male or female. It has been staying in that corner for a whole day. I am very new to aquarium, so I am not sure what I am suppose to do. Do I have to quarantine it? What if I quarantine is but it happens to pregnant?